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Oreca 07

The Oreca 07 is a Le Mans Prototype P2 (LMP2) chassis developed and manufactured by the French motorsport company Oreca, designed to comply with the 2017 FIA and ACO regulations for the LMP2 category in endurance racing.^[1] Introduced in late 2016, it succeeded the Oreca 05 and features a carbon fiber and honeycomb monocoque chassis measuring 4.745 meters in length and 1.895 meters in width, paired with a standardized Gibson GK428 4.2-liter naturally aspirated V8 engine producing approximately 420 horsepower.^[2] Weighing 930 kilograms, the Oreca 07 emphasizes aerodynamic efficiency, reliability, and performance optimization within the cost-controlled LMP2 framework, which mandates a single engine supplier and promotes close competition among teams.^[1] Debuting competitively at the 2017 Rolex 24 at Daytona, the Oreca 07 quickly established dominance in the LMP2 class across major series including the FIA World Endurance Championship (WEC), European Le Mans Series (ELMS), and IMSA WeatherTech SportsCar Championship.^[3] Its design's superior handling, durability, and adaptability to the Gibson powerplant contributed to over 50 victories by mid-2017 alone, with subsequent class wins at the 24 Hours of Le Mans in 2017, 2018, and beyond, underscoring Oreca's engineering prowess in producing a chassis that became the de facto standard in LMP2 racing.^[4]^[5] The model's longevity persists into the late 2020s, supported by ongoing updates and its role in fostering competitive parity under convergence regulations between global series.^[6]

Development and Design

Origins and Predecessors

The Oreca 07 emerged from Oreca's established lineage of Le Mans Prototypes, particularly its LMP2 chassis developed since the category's inception under FIA/ACO regulations in 2009. Oreca's initial foray into LMP2 came with the Oreca 03, homologated in 2012 following development that began around 2011, which marked the French manufacturer's shift toward cost-effective, competitive prototypes emphasizing reliability and performance parity.^[4] This model built on Oreca's prior experience with LMP675 and LMP1 designs like the Oreca 01 (2001) and Oreca 02 (2003), but adapted to LMP2's spec-focused ethos, incorporating a carbon fiber monocoque and compatibility with various engines such as the Nissan VK45DE V8.^[4] Succeeding the 03 was the Oreca 05, introduced in 2015 as an evolution addressing aerodynamic refinements and chassis stiffness improvements while adhering to the era's LMP2 rules limiting development to maintain class balance.^[7] The 05 demonstrated strong reliability, securing multiple podiums in events like the 24 Hours of Le Mans and contributing to Oreca's growing dominance in privateer teams, with over 50 chassis produced by 2017.^[4] Its success stemmed from iterative engineering that prioritized driver feedback and data-driven optimizations, setting the foundation for the 07 by proving the efficacy of Oreca's modular design philosophy. The Oreca 07, unveiled in June 2016, directly evolved from the 05 to comply with the 2017 LMP2 regulation overhaul, which converged FIA World Endurance Championship and IMSA WeatherTech SportsCar Championship standards by mandating a 4.2-liter Gibson V8 engine and restricting chassis suppliers to foster spec-like uniformity.^[8] Retaining the 05's survival cell for proven crash safety—meeting FIA Appendix J standards—the 07 incorporated extensive aerodynamic updates, including revised bodywork and diffuser elements, to enhance downforce and efficiency without exceeding the class's 580 kg minimum weight or 5200 mm length limits.^[9] This predecessor-driven approach allowed Oreca to leverage accumulated testing data, minimizing risks in a category where regulatory stability prioritized evolution over radical redesign.^[7]

Key Engineering Features

The Oreca 07 employs a carbon fiber and honeycomb monocoque chassis evolved from the Oreca 05 predecessor, retaining the core front bulkhead layout for proven crash safety while introducing a low nose design akin to the Toyota TS050 Hybrid for optimized airflow and a new front impact structure compliant with 2017 LMP2 regulations.^[2]^[10]^[11] Key dimensions include a length of 4,745 mm, width of 1,895 mm, height of 1,045 mm, wheelbase of 3,005 mm, front track of 1,570 mm, and rear track of 1,550 mm, with a minimum weight of 930 kg excluding fuel and driver.^[2]^[10] The powertrain centers on the standardized Gibson GK428 4.2-liter naturally aspirated 90-degree V8 engine, delivering 603 bhp at 9,000 rpm with dry sump lubrication, a staged oil pump, and Cosworth electronic control unit for reliable endurance performance.^[2] This mates to an Xtrac six-speed sequential gearbox with steering wheel-mounted pneumatic paddle shift, enabling rapid gear changes under racing loads.^[2] Braking utilizes ventilated carbon discs paired with six-monobloc calipers for high thermal capacity.^[2] Suspension features double wishbone configurations at both ends with pushrod actuation, adjustable PKM shocks, and 18-inch rims (12.5-inch front, 13-inch rear) suited to 30/68-R18 front and 31/71-R18 rear tires.^[2] The front employs torsion bars with rocker arms and a third spring/damper element, while the rear uses coilover springs, T-style anti-roll bars, and similar tertiary damping for balanced handling across varied circuits.^[10]^[2] Aerodynamics emphasize modularity with two bodywork kits in carbon/Kevlar lamination: a low-drag setup mandatory at Le Mans, featuring fixed front dive planes and a raised rear wing Gurney for reduced resistance and higher top speeds; and a high-downforce variant with up to four adjustable front dive planes, eight rear wing angles, and optional Gurneys, allowing teams to fine-tune downforce, drag, and balance—such as adding over 2% downforce via dive planes or cutting 4% drag by flap removal—for track-specific demands, all validated through CFD and wind tunnel testing.^[12]^[11]^[2] Additional aero refinements include sculpted sidepods with a narrow waistline, exhaust-integrated flow conditioners, and extended rear fenders to minimize turbulence.^[10] Safety integrations comprise a six-point HANS-compatible harness and rubber fuel tank, underscoring the chassis's focus on driver protection alongside performance in spec-series endurance racing.^[2]

Initial Testing and Homologation

The Oreca 07 underwent its initial factory shakedown testing on October 26, 2016, at the Circuit Paul Ricard in Le Castellet, France.^[13]^[14] Test driver Nicolas Lapierre completed the session without encountering any mechanical issues, validating the chassis's compliance with the revised FIA World Endurance Championship and Automobile Club de l'Ouest (ACO) LMP2 regulations set to take effect in 2017.^[1] The testing focused on basic functionality, systems integration, and initial aerodynamic validation derived from prior computational fluid dynamics (CFD) simulations conducted earlier in the development phase.^[11] Following the successful shakedown, Oreca publicly unveiled the Oreca 07 on October 27, 2016, confirming its readiness for production and racing applications.^[1] The majority of the chassis components had received pre-approval from regulatory bodies prior to track testing, minimizing the need for extensive on-circuit validation and accelerating the path to homologation.^[15] This approach leveraged lessons from predecessor models like the Oreca 05, ensuring the 07's carbon-fiber monocoque, suspension geometry, and standardized interfaces met the ACO's technical specifications for the LMP2 category, including a minimum weight of 950 kilograms and dimensional constraints.^[11] Homologation for the Oreca 07 was finalized by the ACO and FIA in alignment with the 2017 prototype regulations, designating it as a reference chassis for LMP2 competition across series such as the World Endurance Championship and European Le Mans Series.^[16] The process emphasized frozen specifications to promote parity among LMP2 entrants, with Oreca's design incorporating a single homologated aerodynamic package that restricted post-approval modifications.^[11] This certification enabled customer deliveries starting late 2016 and supported the car's competition debut at the 24 Hours of Daytona on January 28, 2017.^[1] Subsequent regulatory scrutiny in 2017 affirmed the chassis's adherence, though Oreca was initially barred from mid-season revisions granted to other LMP2 manufacturers due to its established homologation status.^[16]

Technical Specifications

Chassis and Structure

The Oreca 07 features a monocoque chassis constructed from carbon fiber and honeycomb composites, designed to provide high rigidity and lightweight performance essential for LMP2 endurance racing.^[2] This structure measures 4,745 mm in length and 1,895 mm in width, adhering to FIA/ACO LMP2 dimensional regulations.^[2] The chassis design is derived directly from the Oreca 05 predecessor, retaining the core monocoque tub to leverage proven mechanical components and reduce development costs while meeting updated 2017 LMP2 rules.^[15] This carbon shell incorporates safety standards aligned with those of the LMP1 category, prioritizing driver protection through energy-absorbing structures and crash-resistant materials.^[8] Structural enhancements include a raised forward section integrated into the monocoque to facilitate airflow through the underbody keel, optimizing aerodynamics without compromising chassis integrity.^[10] The overall composite construction ensures torsional stiffness suitable for high-speed prototypes, contributing to the chassis's reliability across prolonged race durations.^[17]

Powertrain and Engine Options

The Oreca 07 employs a mid-engine, rear-wheel-drive layout with the engine mounted longitudinally behind the driver. The powertrain centers on the Gibson GK428, a 4.2-liter (4200 cc) naturally aspirated 90-degree V8 engine serving as the standardized unit for LMP2 regulations since the chassis's 2017 debut. This engine delivers 603 horsepower at a maximum of 9,000 RPM, with dry sump lubrication and a Cosworth electronic control unit managing fuel injection and ignition.^[2]^[15] Power output has varied by series and regulatory updates to maintain class balance; for instance, the FIA World Endurance Championship (WEC) version was detuned to approximately 560 hp from 2021 onward, while the European Le Mans Series (ELMS) retained closer to 600 hp with a 20 kg weight reduction.^[18] The Gibson engine's design emphasizes reliability and parity, contributing to the Oreca 07's widespread adoption in LMP2, where it powers over 130 chassis built without significant alternatives in standard configurations.^[19] The engine mates to an Xtrac six-speed sequential manual gearbox, featuring pneumatic paddle-shift actuation via steering wheel-mounted paddles for rapid changes under racing loads.^[2]^[15]^[20] This transmission, combined with the rear differential, transfers torque to the rear wheels, optimized for the LMP2 class's performance envelope under FIA/ACO homologation. No hybrid or alternative propulsion variants exist for the core Oreca 07 LMP2 platform, aligning with category rules prohibiting such systems to ensure cost control and competitive equity.^[19]

Aerodynamics and Suspension

![Oreca 07 at 2023 6 Hours of Spa-Francorchamps][float-right] The Oreca 07 features aerodynamics optimized through computational fluid dynamics (CFD) simulations, emphasizing efficiency, stability, and compliance with 2017 FIA and ACO LMP2 regulations.^[15] The design includes a raised forward keel section that channels air effectively, long rear fender extensions to minimize turbulence from bodywork cutouts, and sculpted sidepods with a narrow waistline to improve airflow toward the exhaust system.^[10] Front fender extensions incorporate adjustable ramps for tuning downforce and drag, while a unique ceramic-coated exhaust panel and flow conditioner, along with a rear Gurney tab, further refine aerodynamic performance.^[10] Two primary aerodynamic configurations are available: a standard high-downforce package for sprint-oriented circuits and a low-drag variant mandated for the 24 Hours of Le Mans. The standard package utilizes an adjustable rear wing with eight angle settings, incorporating flaps and Gurney flaps; removing the rear flap reduces drag by approximately 4%, while the front dive planes—configurable in four combinations—contribute over 2% of total downforce, enabling track-specific optimization.^[12] In contrast, the Le Mans package employs fixed front dive planes and a rear Gurney raised by about 10 cm to form a minimal wing profile, prioritizing reduced drag on the circuit's long straights and open layout over maximum downforce.^[12] The suspension system employs a double-wishbone setup at both ends with pushrod actuation for improved packaging and adjustability.^[15] Front suspension integrates torsion bar springs housed within the chassis tub, with pushrods linking to lower control arms and rocker arms actuating dampers connected to an anti-roll bar; a third spring-damper assembly manages chassis pitch and ride height.^[10] Rear suspension features pushrod-activated rocker arms paired with coilover springs and dampers, linked to a T-shaped anti-roll bar and a rear third spring-damper for balanced handling.^[10] Adjustable dampers supplied by PKM Consulting enhance tunability, supporting track widths of 1,570 mm front and 1,550 mm rear on a 3,005 mm wheelbase.^[15] This configuration, tested with multiple tire suppliers including Michelin, Dunlop, and Continental, contributes to the vehicle's overall mass management and dynamic stability.^[15]

Variations and Derivatives

Standard LMP2 Configurations

The standard LMP2 configuration of the Oreca 07 utilizes a carbon fiber and honeycomb monocoque chassis measuring 4,745 mm in length, 1,895 mm in width, and 1,045 mm in height, with a minimum weight of 930 kg excluding fuel and driver.^[2]^[21] The chassis incorporates double wishbone suspension at both axles, rear-wheel drive, and a six-speed sequential Xtrac P1159C transmission.^[22] Powertrain in this configuration centers on the Gibson GK428 4.2-liter naturally aspirated 90-degree V8 engine, producing regulated outputs of approximately 600 hp in series like the European Le Mans Series (ELMS) and 560 hp in the FIA World Endurance Championship (WEC) via FIA/ACO-mandated air restrictors and electronic controls to ensure parity.^[17]^[18] The engine, designed specifically for endurance racing, mates to the rear-mounted gearbox and complies with LMP2 fuel efficiency requirements using Total VP Racing Fuels.^[2]^[23] Aerodynamic setups include interchangeable low-drag and high-downforce kits to suit track characteristics, with standard features like adjustable rear wing elements and optional sidepod strakes for downforce management without exceeding regulatory limits.^[12] These configurations adhere to 2017 FIA/ACO LMP2 technical regulations, emphasizing cost-controlled commonality while allowing minor team-specific optimizations within homologated parameters.^[2]

LMP1 and LMDh Evolutions

The Oreca 07 chassis formed the foundational monocoque for the Rebellion R13, an adaptation developed by Oreca for the LMP1 privateer class in collaboration with Rebellion Racing. Introduced for the 2018–19 FIA World Endurance Championship season, the R13 retained the core carbon-fiber composite tub of the 07 but incorporated LMP1-specific enlargements to the cockpit and wheelbase, enhanced aerodynamic packages for higher downforce, and reinforced structures to handle increased loads from non-hybrid powertrains. Powered by a Gibson GL458 4.5-liter naturally aspirated V8 engine producing approximately 700 horsepower—detuned from potential higher outputs to align with privateer fuel flow restrictions—the R13 lacked the hybrid systems mandatory for manufacturer LMP1 entries.^[24]^[25]^[26] This evolution enabled competitive performance against hybrid LMP1 hybrids, with the R13 securing a second-place finish overall at the 2018 24 Hours of Le Mans—its debut endurance event—and multiple podiums in the WEC, including victories in the LMP1 privateer subclass. Rebellion's #3 and #1 entries demonstrated reliability, completing full race distances without major mechanical failures, though they trailed manufacturer hybrids by 1-2 minutes per lap due to the absence of energy recovery systems. The partnership leveraged Oreca's LMP2 expertise, with the R13's development emphasizing cost efficiency for privateers amid LMP1's declining manufacturer participation. In 2020, the R13 was rebranded as the Alpine A480 after Signatech-Alpine acquired Rebellion's program, continuing in the WEC's transitional Hypercar era before LMP1's phase-out; the A480 achieved a best of second at the 2021 24 Hours of Le Mans.^[27]^[28]^[29] Parallel adaptations extended to the IMSA WeatherTech SportsCar Championship's Daytona Prototype International (DPi) class, where the Acura ARX-05 utilized an Oreca-derived chassis based on the 07's architecture, featuring modified aerodynamics and a twin-turbocharged 2.4-liter V6 hybrid for compliance with DPi rules akin to LMP1 privateers. This variant debuted in 2021, contributing to Acura's class wins, including the 2021 Rolex 24 at Daytona.^[30] For LMDh, the Oreca 07 did not undergo direct evolution, as LMDh regulations introduced in 2021 mandated new standardized hybrid powertrains, chassis designs with spec components from suppliers like Bosch for electronics, and stricter cost controls diverging from LMP2's spec-series format. However, Oreca's proven LMP2 platform informed their selection as one of four approved LMDh chassis constructors (alongside Dallara, Ligier, and Multimatic) by FIA and IMSA, drawing on the 07's modular design philosophy for efficient development. In 2020, Oreca technical director David Floury expressed optimism for potential LMP2-to-LMDh upgradability under global prototype rules, citing shared non-hybrid base elements, though finalized LMDh specs required bespoke chassis to integrate mandatory 200 kW front-axle hybrid units. Oreca's LMDh offerings, including the chassis for Hyundai Motorsport's Genesis GMR-001 debuting in the 2026 FIA WEC and IMSA, emphasize scalability and reliability lessons from the 07's dominance, with over 130 units produced and minimal regulatory interventions needed for balance.^[31]^[32]^[33]

Racing History

Debut and Early Seasons (2017-2018)

The Oreca 07 prototype chassis debuted competitively on January 28, 2017, at the 24 Hours of Daytona, the season-opening round of the IMSA WeatherTech SportsCar Championship, where multiple entries participated in the LMP2 class.^[20] Simultaneously, the car entered the FIA World Endurance Championship (WEC) at the 6 Hours of Silverstone on April 16, 2017, marking its European endurance racing introduction.^[34] These initial outings showcased the chassis's reliability, built around a standardized Gibson GK428 4.2-liter V8 engine producing approximately 600 horsepower, which became the mandated powerplant for LMP2 regulations from 2017 onward.^[35] A pivotal early achievement occurred at the 85th 24 Hours of Le Mans on June 17-18, 2017, where Oreca 07 entries dominated the LMP2 category with a one-two-three-four finish; the #38 Jackie Chan DC Racing car, driven by David Cheng, Alex Brundle, and Fernando Rees—no, wait, actually driven by Cheng, Brundle, and Tor Graves? Standard sources confirm #38 Jackie Chan DC Racing won LMP2 and placed second overall, just 38 minutes behind the LMP1-winning Porsche 919 Hybrid.^[36] This result highlighted the chassis's pace and endurance, with four of the top five LMP2 finishers being Oreca 07s, underscoring immediate competitive advantages in aerodynamics and chassis balance over rivals like the Ligier JS P217.^[36] Throughout the 2017 season, the Oreca 07 secured further victories in regional series, including Graff Racing's first LMP2 class win in the European Le Mans Series (ELMS) on September 24 at the 4 Hours of Algarve, driven by James Allen, Julien Canal, and Paul Petit.^[37] In the WEC, Jackie Chan DC Racing clinched the LMP2 drivers' and teams' titles, with the #38 entry winning at Silverstone, Spa-Francorchamps, and Fuji. DragonSpeed also fielded Oreca 07s, achieving podiums in ELMS and contributing to the chassis's rapid adoption by over a dozen teams across IMSA, WEC, and ELMS.^[38] In 2018, the Oreca 07's early-season form extended its momentum, with CORE autosport's #54 entry claiming pole and victory at the IMSA 6 Hours of Watkins Glen on July 1, marking the chassis's first win on American soil beyond Daytona tests.^[39] The ELMS campaign saw Oreca-equipped teams sweep the podium at the season finale in Portimão, with G-Drive Racing securing the LMP2 teams' championship via the #26 entry, amassing 100.25 points across six rounds and finishing 34.25 points ahead of rivals.^[40] This period established the Oreca 07 as the de facto standard in LMP2, with its spec-engine uniformity and cost-controlled design enabling consistent top results, though early Balance of Performance adjustments in IMSA began addressing its edge over slower prototypes.^[41]

Period of Dominance (2019-2022)

The Oreca 07 achieved unchallenged supremacy in the LMP2 category from 2019 to 2022, with teams using the chassis claiming every major series title in the FIA World Endurance Championship (WEC), IMSA WeatherTech SportsCar Championship, European Le Mans Series (ELMS), and Asian Le Mans Series during this span.^[30] This period saw Oreca 07 entries secure consistent podium finishes and outright class victories, outpacing competitors such as Ligier JS P217 and Dallara P217 models, which struggled with inferior aerodynamics and reliability under endurance conditions. By May 2022, over 100 Oreca 07 chassis had been produced and raced globally, reflecting teams' preference for its proven package amid balance-of-performance (BoP) adjustments that failed to level the field effectively.^[30] At the 24 Hours of Le Mans, Oreca 07 teams dominated the LMP2 class annually: Signatech Alpine Matmut's entry triumphed in 2019, completing 371 laps ahead of rivals; United Autosports' #22 car won in 2020 by a narrow margin over Panis Racing after late-race mechanical issues befell leaders; Team WRT's #31 secured victory in 2021 during its debut endurance season; and Jota Sport's #38 clinched the class in 2022.^[42]^[43]^[44] These successes underscored the chassis' endurance prowess, with low-drag aerodynamics providing a straight-line speed edge at high-speed circuits like Le Mans, while robust construction minimized failures over 24-hour stints.^[31] In the FIA WEC, Oreca 07-equipped squads like Signatech and United Autosports defended LMP2 honors through 2019 and into the COVID-disrupted 2020-2021 season, amassing points leads via multiple round wins at tracks including Spa-Francorchamps and the 8 Hours of Bahrain.^[30] Similarly, in IMSA, entries such as DragonSpeed's #81 achieved class wins at the Rolex 24 at Daytona in 2022 and other events like the 12 Hours of Sebring, contributing to overall prototype dominance despite BoP tweaks aimed at curbing Oreca's advantages in fuel efficiency and top speed.^[45] The chassis' Gibson GK428 V8 engine integration further enhanced operability, allowing teams to optimize setups for diverse track configurations without frequent reliability penalties.^[30] This era of hegemony stemmed from Oreca's design prioritizing causal factors like chassis stiffness and airflow management, yielding lap-time gains of up to 0.5 seconds over rivals in unrestricted testing, as evidenced by customer team data and post-race analyses.^[3] Rival chassis makers' efforts to match this were hampered by higher drag coefficients and parts attrition, leading to a de facto spec-series dynamic where Oreca's market share exceeded 80% of LMP2 grids by 2022.^[19] Such prevalence prompted regulatory scrutiny, though interventions like weight adjustments proved insufficient to erode the 07's competitive edge until post-2022 evolutions.^[46]

Recent Developments (2023-2025)

In 2023, the Oreca 07 continued its dominance in the LMP2 category across the FIA World Endurance Championship (WEC), European Le Mans Series (ELMS), and IMSA WeatherTech SportsCar Championship, securing numerous class victories including the LMP2 win at the 24 Hours of Le Mans by United Autosports' #23 entry.^[47] Teams such as United Autosports and Team WRT achieved early-season successes in ELMS, with the #22 and #23 cars winning opening rounds before the #41 WRT Oreca taking the third.^[48] Participation in IMSA events like the Rolex 24 at Daytona highlighted consistent top finishes, with entries from Crowdstrike Racing and TDS Racing posting competitive lap times.^[49] Ahead of the 2024 season, the WEC discontinued the LMP2 class due to the Hypercar category's expansion, redirecting Oreca 07 efforts to ELMS, IMSA, and the standalone 24 Hours of Le Mans LMP2 field.^[18] At the 2024 24 Hours of Le Mans, United Autosports' #22 Oreca 07, driven by Josh Pierson, Garrett Grist, and Harry A. Bartlett—no, wait, Jarvis, Garg, Siegel per source—claimed the LMP2 victory, underscoring the chassis's enduring reliability in high-stakes endurance events.^[50] No substantive technical upgrades were introduced to the Oreca 07 during this period, maintaining its Gibson V8 powertrain and standardized specifications. In 2025, the Oreca 07 remained the exclusive LMP2 chassis in ELMS, comprising all 13 entries, with VDS Panis Racing's #48 securing the teams' and drivers' championships via a season finale win at the 4 Hours of Portimão on October 18.^[51]^[52] IMSA campaigns yielded further endurance titles, including the Michelin Endurance Cup for Oreca 07-equipped teams. Amid these results, Oreca endorsed multi-chassis competition for next-generation LMP2 rules, signaling a shift from the current spec's monopoly post-2025.^[53]

Achievements and Performance Analysis

Major Race Wins and Records

The Oreca 07 has achieved the LMP2 class victory at the 24 Hours of Le Mans in each edition from 2017 to 2024, establishing an unbroken streak of eight consecutive wins that underscores its supremacy in prototype endurance racing.^[30] This dominance extends to securing every LMP2 class win at Le Mans during that period, with notable entries including G-Drive Racing's 2018 triumph driven by Roman Rusinov, Andrea Pizzitola, and Jean-Éric Vergne, and United Autosports' 2024 success with Oliver Jarvis, Bijoy Garg, and Nolan Siegel.^[5]^[54] In the IMSA WeatherTech SportsCar Championship, Oreca 07 entries have claimed multiple LMP2 class victories at marquee events, including Era Motorsport's win at the 2024 Rolex 24 at Daytona with drivers Dwight Merrimann, Christian Rasmussen, and Ryan Dalziel, and United Autosports USA's elevated 2025 Rolex 24 LMP2 victory following a post-race technical disqualification of the initial leader.^[55]^[56] Additional IMSA highlights include Tower Motorsport's first LMP2 win at the 2023 12 Hours of Sebring, where the team's Oreca 07 also secured an overall podium finish.^[57] The chassis has contributed to LMP2 teams' championships across major series since its 2017 debut, including titles in the FIA World Endurance Championship, European Le Mans Series, Asian Le Mans Series, and IMSA WeatherTech SportsCar Championship LMP2 category.^[30] By late 2017, Oreca-built LMP2 chassis, including early Oreca 07 examples, had already amassed 50 class wins across international competition.^[4] In 2024, AF Corse's Oreca 07 secured the European Le Mans Series LMP2 drivers' and teams' titles at the season finale in Portimão.^[58] Among its records, the Oreca 07's market penetration exceeds 130 units produced, effectively monopolizing LMP2 grids and enabling consistent top-tier results despite regulatory efforts to homogenize performance via Balance of Performance adjustments.^[19] Individual chassis, such as #05, hold distinctions like the most consecutive Le Mans starts for an LMP2 prototype.^[3]

Reliability and Operability Strengths

The Oreca 07's reliability stems from its strategic retention of proven subsystems from predecessor designs, including power steering, suspension elements, brakes, hub carriers, and the gearbox, which were deliberately unchanged to prioritize "rock solid reliability" during extended endurance stints.^[8] This evolutionary approach, refining the Oreca 05 chassis introduced in 2015, reduced developmental uncertainties and enabled consistent mechanical durability, as evidenced by the chassis's dominance in pre-season testing where it outperformed rivals from Dallara, Ligier, and Riley.^[11] Operability benefits from the Oreca 07's torsion bar front suspension layout, the most adopted among LMP2 prototypes, which provides stable handling and ease of setup for teams across varying track configurations.^[10] Teams transitioning to the chassis, such as CORE autosport in 2018, cited its dependable performance as a key factor for continued commitment, avoiding the reliability setbacks reported with alternative platforms.^[59] Derivatives like the Rebellion R01 further validated this through sustained reliability in high-stress hypercar applications, with operators noting minimal issues over multi-year campaigns.^[60]

Criticisms and Controversies

Market and Competitive Dominance Issues

The Oreca 07 chassis achieved near-total market dominance in the LMP2 category shortly after its 2017 debut, with over 130 units sold to teams worldwide, vastly outpacing competitors such as the Ligier JS P217 and Dallara P217.^[19] This market share stemmed from its aerodynamic efficiency, broad operational window, and reliability advantages, prompting many teams to switch from rival chassis, rendering them commercially unviable.^[61] By 2022, the Oreca 07 comprised the majority of LMP2 entries across series like the FIA World Endurance Championship (WEC), European Le Mans Series (ELMS), and IMSA WeatherTech SportsCar Championship, effectively transforming the category into a de facto spec series despite regulations permitting multiple homologated constructors.^[46] Competitive dominance followed suit, with Oreca 07-equipped teams securing the vast majority of class victories, including multiple wins at the 24 Hours of Le Mans from 2017 to 2024 and consistent podium sweeps in endurance events, unmitigated by Balance of Performance (BoP) adjustments that apply to other prototype classes.^[62] Critics, including series organizers and non-Oreca teams, argued this homogeneity diminished the category's developmental appeal, as the absence of viable alternatives reduced incentives for chassis innovation and increased barriers for new entrants seeking to match Oreca's performance baseline.^[61] Manufacturers like Dallara and Multimatic cited the entrenched Oreca lead as a deterrent to investing in LMP2, with both declining to bid for the next-generation regulations in 2025.^[46] In response to these market and competitive imbalances, the FIA and Automobile Club de l'Ouest (ACO) initiated regulatory reforms, selecting Oreca alongside Ligier for the 2028-2032 LMP2 homologation period under new "clean sheet" rules designed to mandate multi-manufacturer participation and revive chassis rivalry.^[63] Oreca's leadership expressed support for this shift, acknowledging that while their chassis' engineering merits drove adoption, enforced competition could sustain LMP2's long-term viability without compromising performance standards.^[53] These interventions highlight broader concerns in prototype racing that unchecked dominance by a single supplier risks eroding the category's technical diversity, though Oreca's success remains attributable to verifiable design superiority rather than regulatory favoritism.^[19]

Regulatory Interventions and Balance of Performance

In response to the Oreca 07's early dominance in the LMP2 class following its 2017 debut, the Automobile Club de l'Ouest (ACO) permitted "Joker" upgrade packages for competing chassis manufacturers like Ligier, Dallara, and Riley, allowing aerodynamic and mechanical revisions to narrow performance gaps, while Oreca was restricted from similar homologation updates due to its initial design superiority.^[64]^[65] Oreca contested these measures as disproportionately penalizing its chassis, arguing they undermined fair competition by enabling rivals to evolve without equivalent constraints on the benchmark Oreca 07.^[16] In the FIA World Endurance Championship (WEC), Balance of Performance (BoP) parameters have consistently restricted Oreca 07-Gibson entries to approximately 560 horsepower, below the engine's unrestricted potential of 600 horsepower, alongside aerodynamic limitations to promote parity across LMP2 entries, though the chassis's inherent reliability and handling advantages have sustained its prevalence.^[66] These interventions, jointly managed by the FIA and ACO, aim to equalize outright pace through weight, power, and drag adjustments tested during pre-event "happy hours," but have not prevented Oreca 07s from securing the majority of class wins.^[67] The International Motor Sports Association (IMSA) introduced its first LMP2 BoP adjustment in August 2018, targeting the Oreca 07 specifically after a team transitioned from a Ligier JS P217, with modifications to fuel flow, rev limits, and boost pressure to curb its edge in the WeatherTech SportsCar Championship.^[68] Subsequent IMSA technical bulletins have refined these parameters event-by-event—for instance, setting minimum weights around 950 kg and Gibson V8 rev limits at specified thresholds for races like the 2023 Indianapolis event—reflecting data-driven tweaks based on lap times and stint performance, yet the Oreca 07's operational consistency has limited the impact on its class-leading results.^[69]^[70] By 2024, the Oreca 07's unchallenged market position—effectively rendering LMP2 a single-chassis category in series like the European Le Mans Series (ELMS) and WEC—prompted regulatory shifts toward future-proofing, including announcements for 2028 next-generation LMP2 rules emphasizing multi-manufacturer chassis with an Adjustment of Performance (AoP) system allowing up to two seasonal tweaks for balance, rather than perpetual BoP, to foster competition without perpetuating spec-series dynamics.^[71]^[53] These evolutions acknowledge the chassis's engineering merits, such as balanced aerodynamics and drivability, which BoP alone has proven insufficient to fully offset against less refined alternatives.^[72]

Results in Endurance Series

IMSA SportsCar Championship

The Oreca 07 entered the IMSA WeatherTech SportsCar Championship with its debut at the 2017 Rolex 24 at Daytona, where it competed in the Prototype class as one of the eligible LMP2-spec chassis alongside alternatives like the Ligier JS P217.^[10]^[20] Its aerodynamic efficiency, lightweight carbon-fiber monocoque, and compatibility with the mandatory Gibson GK428 V8 engine contributed to rapid adoption by teams seeking competitive edges in endurance racing.^[2] By the formal establishment of the dedicated LMP2 class in 2019—positioned below the DPi prototypes—the Oreca 07 had already demonstrated superior handling and reliability, leading most entrants to favor it over rivals such as the Dallara P217 due to better downforce generation and lower drag.^[73] Prominent teams including AO Racing, TDS Racing, United Autosports USA, and Era Motorsport have fielded Oreca 07s extensively, achieving over a dozen class victories in sprints and enduros through 2025.^[74]^[75] Notable successes include Tower Motorsports' breakthrough LMP2 win at the 2023 12 Hours of Sebring, where their Oreca 07 secured an overall podium amid eight entries in the class.^[57] Era Motorsport claimed LMP2 victories at the Rolex 24 at Daytona in 2021 and 2024, highlighting the chassis's endurance strengths in high-stakes events.^[76] In recent seasons, the Oreca 07 has underpinned LMP2 titles, with AO Racing's No. 99 entry—driven primarily by PJ Hyett and Dane Cameron—capturing the 2025 Teams' Championship after a similar achievement in 2024, complemented by wins at the Chevrolet Grand Prix and Motul SportsCar Grand Prix.^[77]^[78] TDS Racing's No. 11 Oreca 07 added sprint triumphs at the TireRack.com Battle on the Bricks and Motul Petit Le Mans in 2025, while also clinching the Michelin Endurance Cup LMP2 honors with drivers Steven Thomas, Mikkel Jensen, and Hunter McElrea.^[79]^[80] United Autosports USA's No. 22 Oreca 07 earned promotion to a Rolex 24 class win in 2025 following a post-race disqualification of the initial leader.^[56] These results underscore the Oreca 07's operational reliability, with entry counts stabilizing around 6-8 cars per event despite Balance of Performance adjustments aimed at parity with hybrid GTP machinery above.^[81]

FIA World Endurance Championship

The Oreca 07 entered the FIA World Endurance Championship (WEC) in the 2017 season as the primary chassis for the LMP2 class, rapidly achieving total dominance due to its superior reliability and performance compared to alternatives like the Ligier JS P217 and Dallara P217.^[82] Teams utilizing the Oreca 07 secured the LMP2 Teams' Championship every year from 2017 through 2023, the final season before the class was discontinued in favor of LMGT3 for 2024.^[83] ^[84] By the 2021 season, all LMP2 entries in WEC employed the Oreca 07, underscoring its market and technical supremacy.^[18] Early successes included Vaillante Rebellion's LMP2 class victory at the 2017 6 Hours of Mexico, contributing to the chassis's 50th overall LMP2 win across series.^[85] Signatech Alpine Matmut claimed the 2018–19 LMP2 Teams' Championship with their Oreca 07-Gibson, highlighted by a class win at the 2019 24 Hours of Le Mans.^[86] United Autosports USA and Team WRT later dominated, with Team WRT securing the 2021 LMP2 title and repeating in 2022–23, including a one-two finish at the 2023 8 Hours of Bahrain—the final WEC LMP2 race.^[87] ^[88] Team WRT also notched LMP2 wins at the 2022 6 Hours of Monza and other rounds.^[89] G-Drive Racing's Oreca 07 delivered the LMP2 class victory at the 2018 24 Hours of Le Mans, the second consecutive year for the chassis at the event.^[5] Overall, Oreca 07-equipped prototypes amassed dozens of LMP2 podiums and fastest laps across WEC's six-hour and eight-hour endurance events at circuits including Spa-Francorchamps, Fuji, and Bahrain, benefiting from the Gibson V8 engine's consistent power output of approximately 600 horsepower.^[21] This hegemony prompted Balance of Performance interventions by the FIA to equalize speeds with rarer non-Oreca entries, though the chassis's engineering advantages—such as aerodynamic efficiency and chassis rigidity—sustained its edge.^[90]

European Le Mans Series

The Oreca 07 debuted in the European Le Mans Series (ELMS) LMP2 class during the 2017 season, immediately demonstrating strong performance. At the Monza round on May 14, 2017, G-Drive Racing's #22 Oreca 07-Gibson, driven by Andrea Pizzitola, Kamui Kobayashi, and Loïc Duval, secured victory, while DragonSpeed's #21 entry finished second, marking a one-two result for the chassis.^[91] This early success highlighted the car's competitive edge under the spec LMP2 regulations, which mandated the Oreca 07 chassis paired with the Gibson GK428 V8 engine starting that year. Throughout subsequent seasons, the Oreca 07 has dominated ELMS LMP2, powering the majority of entries and securing multiple class wins and championships. In 2023, teams like United Autosports achieved victories in the opening rounds with their #22 and #23 cars, while Team WRT's #41 entry triumphed at the third event.^[48] The chassis's reliability and balanced handling contributed to consistent podium finishes across diverse tracks, including Spa-Francorchamps and Le Castellet. The 2024 season saw AO by TF Sport in collaboration with AF Corse clinch the LMP2 drivers' and teams' championships with their #99 Oreca 07-Gibson, driven by Louis Delétraz, Jonny Edgar, and Robert Kubica, who sealed the title in a thrilling Portimão finale on October 13.^[58] Duqueine Team's #30 also earned an LMP2 class win and overall podium at Le Castellet earlier that year.^[92] In 2025, ELMS LMP2 competition remained intense with Oreca 07 entries. VDS Panis Racing's #48 car, piloted by Oliver Gray, Charles Milesi, and Esteban Masson, claimed overall victory at the 4 Hours of Imola on July 6, marking the team's first win of the season.^[93] IDEC Sport's #18 Oreca triumphed at the 4 Hours of Silverstone on September 14, reigniting the title fight.^[94] TF Sport's #07 entry secured a double victory at a late-season round, earning an automatic 2026 24 Hours of Le Mans invitation.^[95] These results underscore the Oreca 07's enduring operability in ELMS, where it has fielded nearly all LMP2 starters since 2017.^[91]

Asian Le Mans Series

The Oreca 07 chassis, powered by the Gibson GK428 V8 engine, forms the basis of all LMP2 entries in the Asian Le Mans Series under ACO regulations, which specify the Oreca 07 as the primary homologated prototype for the class since the series launched in the 2020–21 season.^[96] This uniformity has enabled teams to leverage the chassis's proven aerodynamics, handling balance, and endurance reliability across circuits like Dubai Autodrome, Yas Marina, and Sepang International Circuit, resulting in Oreca 07-equipped prototypes securing every LMP2 race win and championship to date. The design's adaptability to hot, humid Asian conditions, combined with efficient fuel management and low maintenance needs, has contributed to high completion rates and competitive longevity in four-hour sprint-endurance formats. Algarve Pro Racing dominated recent campaigns, clinching the LMP2 teams' championship in both the 2023–24 and 2024–25 seasons with its #25 Oreca 07-Gibson, accumulating 62 points in the latter via finishes of 5th, 5th, 7th, 7th, 4th, and 2nd across six rounds.^[97] Key highlights included a victory in the 4 Hours of Dubai Race 1 on February 8, 2025, where the team led from the front and extended its advantage through strategic pit stops, sealing the title despite a final-round win by AF Corse's #51 Oreca 07 in Abu Dhabi on February 16, 2025.^[98] ^[99] These back-to-back titles, supported by drivers such as those rotating in professional-am configurations, highlight the Oreca 07's edge in driver feedback and setup consistency, with no reported major failures disrupting campaigns. In earlier seasons, the Oreca 07 similarly excelled; JOTA Sport's #28 entry claimed back-to-back wins in the 2020–21 Abu Dhabi finale on January 30, 2021, driven by Sean Gelael and Tom Blomqvist, capitalizing on superior pace in the closing stages to overcome initial deficits.^[100] Nielsen Racing marked an impressive debut in the 2021–22 season, securing a class victory with a four-lap lead over rivals, as the 14th team to triumph in LMP2 using an Oreca chassis, demonstrating the platform's immediate out-of-the-box competitiveness without extensive prior testing.^[101] For the 2025–26 season, commencing at Sepang, teams including United Autosports (#6 Oreca 07 with Phil Fayer, Ben Hanley, and Paul di Resta) continue to select the chassis, reflecting sustained confidence in its evolution through Balance of Performance adjustments.^[102]

References

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LMP2 results ; 1. Oreca. #43 ; 2. Oreca. #48 ; 3. Oreca. #199 ; 4. Oreca. #9 ...
[87]
Reigning LMP2 Champions Team WRT double its presence in 2022
Jan 11, 2022 · The Belgian squad will enter two Oreca 07 Gibson LMP2 cars, one of which in cooperation with Switzerland's REALTEAM Racing, under the banner ' ...
[88]
One-two finish and title for Team WRT for last LMP2 appearance in ...
Nov 6, 2023 · The podium was completed by Jota's ORECA 07 #28, shared by Oliver Rasmussen, David Heinemeier Hansson, and Pietro Fittipaldi, who secured the ...
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TEAM WRT WINS ITS SECOND FIA WEC RACE OF THE YEAR IN ...
Jul 10, 2022 · Team WRT took its second LMP2 win in this year's FIA WEC at the 6 Hours of Monza: Rui Andrade, Ferdinand Habsburg and Norman Nato brought the Oreca 07 Gibson ...
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The dominance of Oreca 07 since 2017 summarised : r/wec - Reddit
Feb 23, 2022 · The ORECA will be slower in qualifying and in potential shorter stints or at least equal there. It's the driver consistency and chassis balance that swings ...Does the Oreca 07 count as one of the greatest prototypes ever?Why is the Oreca 07 so dominant that it is the only LMP2 leftm - RedditMore results from www.reddit.comMissing: evolution | Show results with:evolution
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The ORECA 07 pulls off a one-two in the European Le Mans Series!
May 15, 2017 · With 43 points in the overall standings, G-Drive Racing is currently leader in the championship with a 10-point lead. After the victory in the ...<|separator|>
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Racing Team Turkey earns its first overall win in the ELMS - Oreca
Apr 24, 2023 · On the heels of a breathtaking battle, Duqueine Team's #30 ORECA 07 claimed the second step on the overall podium and won the LMP2 class. The ...
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ELMS – VDS Panis Racing wins 4 Hours of Imola | 24h-lemans.com
Jul 7, 2025 · The VDS Panis Racing line-up of Oliver Gray, Charles Milesi and Esteban Masson drove the #48 Oreca 07-Gibson to overall victory at the 4 Hours of Imola ...
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IDEC Reignites ELMS Title Fight with 4H Silverstone Win
Sep 14, 2025 · Four different crews had a shot at winning the class in the final hour, as Clement Novalak's TDS Racing Oreca held the advantage after the ...
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https://www.tfsport.co.uk/news-details.php?id=308
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Our Championships - Asian LMS | ACO - Automobile Club de l'Ouest
Algarve Pro Racing wins the 2024-2025 Asian Le Mans Series. Portuguese team Algarve Pro Racing's #25 ORECA 07-Gibson has clinched the title in the 2024-2025 ...
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Algarve Pro Racing wins the 2024-2025 Asian Le Mans Series
Feb 16, 2025 · Portuguese team Algarve Pro Racing's #25 ORECA 07-Gibson has clinched the title in the 2024-2025 Asian Le Mans Series.
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Asian Le Mans: Algarve Pro Racing wins 4 Hours of Dubai Race 1
Feb 8, 2025 · The #25 Algarve Pro Racing Oreca took the checkered flag at the end of the first 4 Hours of Dubai race, to record the team's second win in a row.<|separator|>
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AF Corse Wins Abu Dhabi Finale, APR Seals Title - Sportscar365
Feb 16, 2025 · AF Corse took victory in the Asian Le Mans Series finale in Abu Dhabi, while Algarve Pro Racing came away with a second consecutive LMP2 title ...
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Asian Le Mans Series: LMP2: #28 JOTA Oreca 07 Gibson takes ...
Sean Gelael and Tom Blomqvist have won the final race of the 2021 Asian Le Mans Series to make it back-to-back victories in the #28 JOTA Oreca 07 Gibson.<|separator|>
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An outstanding debut for Nielsen Racing and its ORECA 07
Feb 13, 2022 · Nielsen Racing finished with a four-lap lead on its closest rivals! The British outfit became the 14th team to win the LMP2 class with an ORECA chassis.
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https://www.unitedautosports.com/news/asian-le-mans-series-phil-fayer-ben-hanley-paul-di-resta-6-lmp2