Fact-checked by Grok 2 weeks ago

Group GT3

Group GT3 is a standardized category of grand touring race cars defined by technical regulations developed by the in 2005, with FIA endorsement, featuring silhouette vehicles derived from production road cars that undergo extensive modifications for enhanced performance, safety, and competitiveness while maintaining recognizable bodywork. Introduced as a cost-effective alternative to the more expensive GT1 and GT2 classes, Group GT3 aimed to democratize high-level by allowing manufacturers to produce and sell standardized race cars to private teams, thereby reducing development costs and broadening participation. The category rapidly gained prominence, becoming the global benchmark for GT competition and powering major series such as the GT World Challenge in , , and , as well as national championships worldwide. By emphasizing accessibility, GT3 has attracted drivers from diverse backgrounds, including those transitioning from open-wheel formulas, and has supported the growth of professional racing pathways. At its core, Group GT3 regulations require cars to start from current two-door models, preserving the original layout and engine position while permitting upgrades to powertrains—often turbocharged or naturally aspirated units producing around 500-600 horsepower—aerodynamics, , and braking systems to meet demands. A defining element is the Balance of Performance (BoP) system, managed by and the FIA, which fine-tunes variables like minimum weight (typically 1,200-1,300 kg), restrictor sizes, and ride heights across models from various manufacturers to ensure parity and prevent dominance by any single design. by the FIA is mandatory, involving rigorous testing for compliance, and cars are produced by approved constructors in collaboration with automakers like , Ferrari, , and . The category's evolution includes adaptations for endurance racing, such as the LMGT3 subclass in the (), which aligns with GT3 specs but incorporates additional rules for long-distance events like the . Today, over 20 manufacturers offer GT3-homologated models, with the class supporting diverse race formats—from sprints to endurance challenges—and fostering intense manufacturer rivalries while prioritizing driver skill over raw machinery advantages.

History

Origins and Introduction

Group GT3 emerged as a response to the escalating costs and shifting dynamics in grand touring racing following changes in the after the 2004 season. The existing GT1 class had become dominated by highly modified, manufacturer-backed prototypes with budgets spiraling due to intense competition, while the GT2 class struggled with limited manufacturer participation and fewer competitive entries, leaving a gap for a more accessible category. This prompted the need for a new rung in that bridged the gap between full prototypes and near-production cars, emphasizing cost control to attract privateers and gentlemen drivers alongside professionals. In late 2005, Stéphane Ratel, founder and CEO of the , collaborated with the FIA to establish the Group GT3 regulations, launching the inaugural as a dedicated series for this category. The initiative aimed to standardize vehicles derived from production models with restricted modifications, such as fixed , production-based engines, and sequential gearboxes, to maintain affordability—targeting budgets around one-third of GT1 levels—while ensuring close racing through performance equalization. SRO's vision was to foster greater manufacturer involvement in customer racing without the financial burdens of higher GT classes, enabling amateur and semi-professional drivers to compete on equal footing. The championship's first season commenced in 2006, with the opener held at on May 7, featuring 42 cars from multiple manufacturers. Prominent among the initial entrants were the Porsche 997 GT3 Cup prepared by teams like Larbre Compétition and the Ferrari F430 GT from JMB Racing, which secured victory in the debut race with drivers and Hector Lester. These early events demonstrated GT3's potential, showcasing production-derived machinery with limited alterations to keep development and maintenance costs manageable for teams.

Evolution and Key Developments

Following its initial launch in 2005 by the , the GT3 category saw rapid adoption through the convergence of FIA and SRO rules, culminating in unified standards by 2009 that standardized technical specifications for global use. This alignment facilitated the category's expansion beyond , with the introduction of GT3-spec racing in series such as the in 2007, which became the first championship dedicated exclusively to GT3 cars. The Endurance Series further propelled the format in 2011 by incorporating GT3 vehicles into its endurance-focused events, attracting larger fields and diverse manufacturer participation. Key regulatory shifts have periodically refined the category to enhance safety, competition, and sustainability. Engine power levels have been maintained around 500-550 hp across configurations through the Balance of Performance system since the category's inception, accommodating various engine types. In 2023, sustainability updates mandated the use of , with series transitioning to 100% biofuel blends to reduce carbon emissions without altering core performance parameters. The category's growth has been remarkable, with over 40 homologated models in total by 2025, reflecting broad manufacturer involvement and technological evolution. Expansion into new regions accelerated with the introduction of a GT3 class in the in 2019, boosting participation in Asia and integrating GT3 into the Automobile Club de l'Ouest's endurance ecosystem. In 2024, the LMGT3 subclass was introduced in the , adapting GT3 specifications for top-tier endurance events including the . This global spread has solidified GT3 as the dominant formula, used in dozens of national and international series. In June 2025, announced the GT3 Revival Series for 2026, dedicated to early GT3 cars homologated from 2006 to 2013, in partnership with Peter Auto. The disrupted the 2020-2021 seasons, leading to postponed events, reduced grids, and calendar restructurings across and FIA-sanctioned series. In response, pioneered virtual racing initiatives, such as the E-Sport GT Series on , which featured real-world GT3 drivers competing online and raised funds for pandemic relief efforts. These pilots not only sustained fan engagement but also demonstrated the potential for as a complementary during real-world interruptions.

Technical Regulations

Homologation Process

The homologation process for Group GT3 cars is a rigorous certification procedure overseen by the (FIA) in collaboration with the , ensuring that race cars derive from eligible production vehicles while adhering to standardized safety, technical, and performance criteria. To be eligible, the base model must be a series-production car, typically featuring GT-class heritage such as a two-door design, with the manufacturer committing to ongoing production volumes. For the race variants, the FIA mandates a minimum output of 10 GT3 units within 12 months of the date and 20 units within the first 24 months to verify commercial viability and prevent low-volume specials. The procedure commences with the manufacturer submitting an application to the FIA, accompanied by comprehensive technical blueprints, specifications, and documentation detailing the road car's details and the proposed race modifications. Following initial , the manufacturer constructs a race car, which undergoes mandatory testing phases, including frontal, side, and rear crash tests to validate the integrated steel safety cage and integrity, as well as evaluations to assess aerodynamic compliance and restrict excessive . SRO and FIA technical delegates then perform on-site inspections at the manufacturer's facilities, scrutinizing components for conformity to Appendix J, Article 257A of the , with any discrepancies requiring rectification before provisional approval. For cars homologated from January 1, 2025, a Technical Passport with stickers on the main rollbar is required. Final FIA approval culminates in the issuance of an official form, valid for an initial period of five years and renewable upon submission of updates for design evolutions or regulatory changes. The full timeline from application to generally spans 12 to 18 months, allowing manufacturers to align with calendars. Development and costs are estimated at $500,000 to $1 million, encompassing fabrication, testing facilities, and mandatory features like the .

Vehicle Specifications

Group GT3 vehicles are production-derived grand tourers modified to meet standardized technical requirements outlined in the FIA's Appendix J, Article 257A, ensuring a balance between accessibility and competitive . These specifications emphasize , reliability, and controlled power while allowing manufacturers flexibility in base model selection. All cars must undergo to verify compliance, with core elements focused on integrity, limitations, and aerodynamic efficiency. The is derived from the production road car's structure, reinforced with an integrated safety cage for , complemented by lightweight carbon fiber composite body panels to reduce overall mass while maintaining crash safety standards. This construction adheres to FIA-mandated survival cell requirements, including integrated roll cages and energy-absorbing structures. Minimum weight varies by model and , generally set between 1,220 kg and 1,300 kg (without or ) to promote across diverse production platforms. Engines in GT3 cars can be either naturally aspirated or turbocharged, derived from road-going units with displacements ranging from approximately 3.0 liters to 6.2 liters. Power output is strictly regulated to 500-600 horsepower through air restrictors or boost limiters, preventing excessive performance disparities and ensuring drivability for professional and gentleman drivers alike. These limits are enforced via FIA-approved measurement protocols during and scrutineering. The drivetrain configuration is as standard, promoting handling consistency across the category. A sequential six-speed gearbox is mandatory, typically with paddle-shift mechanisms for rapid changes, while electronic aids are limited; traction control is permitted, but is prohibited. is allowed. This setup, combined with a , supports the category's focus on dynamics. Aerodynamic packages include fixed rear wings, front splitters, and diffusers designed for high with controlled , targeting approximately 1,000-1,500 kg of at 200 km/h. Drag coefficients are optimized to 0.35-0.40, balancing speed and without adjustable elements during . These features must be homologated and sealed to prevent unauthorized modifications. Tires are supplied by approved manufacturers such as or , with specifications dictated by the organizing series to ensure uniformity; dimensions and compounds are homologated for dry and wet conditions. Brakes employ carbon-ceramic discs as standard, paired with FIA-compliant calipers, providing exceptional heat dissipation for endurance racing while meeting minimum size and material requirements.

Balance of Performance

Concept and Methodology

The Balance of Performance (BoP) system in Group GT3 serves to equalize competitive parity among diverse production-derived grand touring cars, which differ in , , and , by fine-tuning adjustable parameters to achieve comparable lap times across the field. Core adjustments include minimum vehicle weight, engine power limited via air restrictor size, , and aerodynamic configurations such as splitter and diffuser angles. This methodology shifts focus from engineering dominance to driver and team execution, enabling multi-manufacturer grids to deliver close racing without prohibitive development costs. The BoP concept was introduced alongside the GT3 regulations in 2006 by the under FIA oversight, supplanting the tiered GT1 and GT2 classes that had previously segmented cars by outright performance levels, and drawing on equalization techniques refined in IMSA's GT categories. This shift aimed to foster accessible, customer-focused racing by standardizing a single class where varied road-car derivatives could compete equitably through regulated tweaks rather than strict silos. BoP adjustments are determined through a data-centric process involving comprehensive testing, including biannual sessions at where cars undergo power verification and instrumented track runs by SRO-nominated professional drivers to capture on , top speed, and sector times. These results feed into models and post-race analyses to forecast balance across circuits, ensuring adjustments account for wear, , and environmental factors. SRO publishes updated BoP tables quarterly or immediately after significant events like races, disseminating them to series organizers for . Despite its objectivity in data reliance, the BoP has drawn criticism for perceived subjectivity in interpreting test outcomes and simulation assumptions, exemplified by the 2018 controversy in the Pirelli World Challenge where Ferrari teams protested adjustments that disadvantaged their 488 GT3 relative to R models, leading to boycotts and debates over manufacturer favoritism.

Implementation and Adjustments

The Balance of Performance (BoP) in Group GT3 is implemented by the Stéphane Ratel Organisation () through a series of targeted adjustments to ensure competitive equity across diverse car models. Key tools include the addition of , which can range up to 100 kg depending on the vehicle's performance, to modify and handling. Air restrictor diameters are adjusted between approximately 1.4 and 2.0 inches (35-50 ) to control and output, while turbocharged engines face limits interpolated relative to ambient conditions at each . Minimum ride heights are set between 70 and 100 to regulate aerodynamic efficiency and ground effect. These parameters are derived from data, dyno testing, and track simulations, allowing fine-tuned interventions without altering core vehicle designs. Testing protocols form the foundation of BoP application, with pre-season shoots conducted at representative circuits to gather performance under controlled conditions. These sessions involve detailed measurements of lap times, sector splits, and engine outputs, often spanning multiple days per car to simulate race loads. In-season tweaks are then applied based on real-world , including fuel consumption rates sampled via standardized flow meters and tire wear patterns analyzed from race logs, enabling rapid responses to emerging imbalances. The SRO's official BoP tests, referenced in series regulations, integrate this with historical files to project adjustments before events. Practical examples illustrate BoP's impact on racing dynamics. In 2015, the GT3 demonstrated early potential by securing a debut win at despite a pre-race adjustment that increased its minimum weight by 10 kg to curb its advantage. Similarly, in 2022, the GT3 received aero-related refinements in BoP tables, including ride height and wing angle constraints, to optimize efficiency amid evolving tire compounds, helping maintain its competitiveness in formats. More recently, ahead of the 2025 , the GT3 Evo benefited from a 5 kg weight reduction (to 1335 kg), alongside restrictor tweaks, to address underperformance observed in prior races. These interventions demonstrate BoP's role in mitigating dominance and promoting close racing. In 2024, BoP was adapted for the new LMGT3 subclass in the , aligning GT3 specifications with endurance-specific rules such as adjusted fuel flow rates and success ballast to ensure parity in long-distance events like the . Overall, BoP implementation has fostered significant grid diversity, with series consistently achieving fields of over 40 cars from eight or more manufacturers, enhancing the spectacle and accessibility of Group GT3 racing.

Homologated Cars

Participating Manufacturers

Group GT3 racing features participation from a diverse array of automakers, with around 13 manufacturers holding active FIA homologations as of 2025, enabling their vehicles to compete in global and regional series. European brands dominate the field, accounting for approximately 60% of homologations, reflecting the class's strong roots in the continent's culture. These companies invest in GT3 to enhance brand visibility, foster , and support customer racing ecosystems, often transferring race-derived advancements like and dynamics to production models. Porsche stands as a foundational figure in GT3, homologating the GT3 R in 2006 as one of the category's inaugural models and achieving over 20 manufacturer and team championships across international series since then. The German marque's sustained involvement has driven the class's evolution through iterative updates to its platform, emphasizing reliability and performance balance. Ferrari has similarly progressed from early entries like the F430 GTC in the mid-2000s to the modern 296 GT3, contributing to GT3's technical sophistication with influences and . Lamborghini's GT3, introduced in 2015, marked a period of dominance from 2015 to 2020, securing multiple titles in championships such as the GT World Challenge and underscoring Italian engineering prowess in naturally aspirated powertrains. Newer participants have broadened GT3's appeal, injecting fresh competition and market diversity. entered in 2016 with the 570S GT3, leveraging British design to challenge established rivals in events. followed in 2018 via the Vantage GT3, bolstering its heritage in gentleman racer categories with factory-backed programs. , operating through its division, committed to the class in 2017 with the RC F GT3 for Asian series like , expanding Japanese representation alongside and /. Manufacturers typically shoulder substantial annual costs and provide technical support to teams through customer racing initiatives, ensuring broad accessibility while maintaining competitive parity via adjustments.

Notable Models and Variants

Group GT3 racing features a range of iconic models that have defined the category through their performance and success. The R, in its 991 and 992 generations, stands out as a benchmark, with the 992 version boasting a 4.2-liter and an extensive record of over 420 podium finishes since its 2023 debut. Similarly, the LMS, introduced in 2009 with a 4.2-liter producing around 500 horsepower, achieved early prominence by winning the GT3 class at the 2010 24 Hours of , marking a key milestone in the model's endurance racing legacy. Variants of these models often incorporate evolutionary updates to maintain competitiveness under evolving regulations. For instance, the GT3 Evo 2020 received enhancements including an updated (), refined with a longer , and improved ergonomics for better driver feedback and reliability. Regional adaptations are also common, such as the GT3, which features cockpit modifications for enhanced operability tailored to the demands of Japan's series, including optimized in its VR38DETT engine. Homologation for GT3 cars mandates a minimum production of at least 10 race-ready within 12 months of approval, increasing to 20 within 24 months, ensuring broader accessibility beyond factory teams. These vehicles typically carry base prices between $450,000 and $600,000, reflecting their advanced carbon-fiber construction and race-specific components, as seen with the R at approximately $575,000. Recent entrants continue to diversify the field. The 2024 BMW M4 GT3 employs a 3.0-liter inline-six delivering up to 590 horsepower, paired with an Xtrac six-speed sequential gearbox for superior . The Ford Mustang GT3, debuting competitively in 2024 with a 5.4-liter naturally aspirated V8 , represents Ford's return to GT3 with a focus on front-engine balance and high-revving power output. The Chevrolet Corvette Z06 GT3.R, introduced in 2024 with a 5.5-liter V8 producing around 600 horsepower, has quickly established itself in international series such as the and . As regulations advance, older models face retirement; for example, the Callaway Corvette C7 GT3-R, homologated in 2019, approaches the end of its cycle in in line with FIA guidelines.

Racing Series and Events

International Championships

The () features the LMGT3 class as its GT category, utilizing GT3-homologated vehicles to ensure close competition among production-based sports cars. Introduced for the 2024 season, LMGT3 replaced the previous regulations and leverages the existing FIA GT3 technical framework, marking the first new class addition since the championship's inception in 2012. In 2025, the LMGT3 class underwent a significant makeover to enhance parity. events typically consist of six-hour endurance races, with the pinnacle being the , which includes a dedicated LMGT3 field and has showcased intense battles since the class's debut, such as multiple team victories across the inaugural season. The GT World Challenge, organized by , serves as the premier global GT3 racing platform, encompassing Sprint Cup and Endurance Cup competitions that combine for a full-season title. The series features over 10 events annually, spanning iconic circuits in and , with formats including one-hour sprint races and multi-hour endurance outings like the . In 2025, the series achieved record participation with over 130 GT3 cars across its regional championships. enhancing global participation and culminating in high-stakes championships decided at events like the . The (ALMS) incorporates a GT class aligned with GT3 specifications, offering a pathway for top performers to earn invitations to the . Launched in its modern four-hour race format during the 2019-2020 season, ALMS events emphasize racing across Asian circuits, such as and Sepang, and aligns with FIA GT3 standards compatible with LMGT3 for the 2024-2025 season, promoting regional talent development. Across these championships, GT3 racing employs and Pro-Am divisions to balance professional and drivers; classes feature two fully professional drivers per car, while Pro-Am pairings include at least one Bronze-rated driver, fostering inclusivity. Points are awarded based on finishing positions with multipliers for events, all enforced through (BoP) adjustments to equalize car speeds via weight, power, and tweaks.

Regional and National Series

Group GT3 cars have proliferated in regional and national racing series worldwide, adapting the global specification to local regulations and preferences while maintaining the Balance of Performance framework. These championships emphasize accessibility for professional and drivers, often featuring endurance formats that highlight the cars' reliability and driver skill. By 2025, and other organizers support over 20 national and regional GT3 series across continents, contributing to thousands of annual race starts that underscore the category's grassroots appeal and manufacturer involvement. In Europe, the serves as Germany's premier national GT3 series, launched in 2007 and centered around demanding circuits like the , where its opening round has been held annually since inception. The championship runs multiple sprint and races on German tracks, attracting fields of up to 30 GT3 cars from various manufacturers and fostering intense competition among regional teams. Similarly, the , organized by the British Racing Drivers' Club under sanction, features a mix of sprint and events, including two-hour races at key venues like , with a format that pairs professional and amateur drivers to promote broad participation. Across the Americas, the WeatherTech SportsCar Championship's GTD class has utilized GT3-based machinery since its introduction in 2014, integrating these cars into high-profile endurance events like the 24 at , which draws international entries and emphasizes strategic pit stops and driver stints. In the region, Japan's series incorporates GT3-homologated vehicles in its GT300 class, blending them with custom-built GT300-specification cars under a unique system, as seen in endurance races like the Suzuka 10 Hours, which tests car durability over extended stints. The Australian GT Championship, rebranded as GT World Challenge Australia, focuses on GT3 machinery for its national tour, culminating in the iconic , an invitational event that attracts global professionals and amateurs to the challenging . Unique aspects of these series include localized rules, such as mandatory driver pairings in British GT that ensure a significant presence of amateur competitors—often comprising half or more of the field—and ongoing tire manufacturer rivalries in , where dominates GT300 entries alongside competitors like and , pending a shift to single-supplier tires in 2027.

References

  1. [1]
    ABOUT GT3 - TOYOTA GAZOO Racing
    GT3, launched in 2005, is a racing car for sale, with cars made by manufacturers, sold to teams, and performance adjusted by race management.
  2. [2]
    Explainer: What are GT1, GT2, GT3 and GT4? - GT REPORT
    May 11, 2025 · GT3 reshaped GT racing into a globally balanced, accessible category. It also played a key role in attracting young talents from top-level open- ...
  3. [3]
    GT World Challenge Europe Powered by AWS
    Reserved for cars conforming to GT3 regulations and using SRO Motorsports Group's globally recognised Balance of Performance (BOP) criteria, Fanatec GT World ...
  4. [4]
    What Is a GT3 Car? Specs, History & GT3 vs GT4 Explained
    To qualify as a GT3 car, a model has to start as a current two-door production vehicle. The frame and engine position must remain unchanged from the road car, ...<|control11|><|separator|>
  5. [5]
    https://carbonxtrem.com/blogs/post/a-beginner-s-guide-to-gt-racing-classes-explained
  6. [6]
    10 years of GT3 celebrated today - GT World Challenge
    May 7, 2016 · At the end of 2005, SRO Motorsports Group founder and CEO Stephane Ratel introduced the FIA GT3 European Championship, together with FIA ...
  7. [7]
    DSC Oldie But Goldie, The First Ever GT3 Race - dailysportscar.com
    Apr 3, 2020 · The first-ever GT3 race, Round One of a Silverstone double-header of the FIA GT3 Championship – 5 May 2006. 42 brand new cars packed the Silverstone pit-lane ...
  8. [8]
    European GT3 Championship Silverstone 2006 - Entry List
    Entry List ; 33, Comar / Rambeaud, JMB Racing Ferrari (MC), Ferrari · F430 ; 34, Simonsen / Lester, JMB Racing Ferrari (MC), Ferrari · F430 ...Missing: first initial
  9. [9]
    italiaspeed.com
    May 7, 2006 · In the inaugural FIA GT3 race, it was a case of clear cut victory for the Ferrari F430 Challenge of Allan Simonsen and Lester (JMB Racing) ...Missing: initial | Show results with:initial
  10. [10]
    A Brief History - SRO Motorsports Group
    SRO Motorsports Group is the established global leader in GT racing. The company is chaired by its founder and CEO, Stéphane Ratel.
  11. [11]
    Why the birth of GT3 is worthy of remembrance at 82MM - Goodwood
    Jan 1, 2025 · Alongside the halo European championship, GT3 cars were also introduced to several national championships in Britain, Italy, Spain and France.
  12. [12]
    Insight: Plotting the FIA's Next Evolution With GT3 - Sportscar365+
    Nov 20, 2024 · John Dagys speaks with FIA representatives on the future of the highly successful GT3 platform....Missing: 2007-2025 | Show results with:2007-2025
  13. [13]
    SRO Motorsports Group upholds environmental commitment with ...
    Jul 22, 2025 · Among the other initiatives implemented by SRO, a 100 percent biofuel has been used in GT World Challenge Europe and GT World Challenge Asia ...
  14. [14]
    2019/2020 Asian Le Mans Series preview - AutoRacing1.com
    Nov 16, 2019 · In the GT class the Series sees the arrival of the new Aston Martin Vantage AMR GT3, and the return of the BWM M6 GT3 and Lamborghini Huracan ...
  15. [15]
    Virtual GT racing takes centre stage at Monza for SRO E-Sport GT ...
    Mar 27, 2020 · Virtual GT racing will take centre stage this weekend when real-world competitors and professional sim drivers go head-to-head in a hotly ...
  16. [16]
    FIA Mandates Minimum GT3 Production Requirements - Sportscar365
    Mar 9, 2018 · At least ten race cars from each GT3 model must now be produced within 12 months of the car's homologation date and 20 within the first two years.
  17. [17]
    FIA Explains GT3 Homologation Process - dailysportscar.com
    Jul 1, 2025 · The FIA has released a short video explaining how its homologation process for what has become one of, if not, the, most successful racing formula in history.
  18. [18]
    SRO Pushing For Earlier GT3 Homologations - Sportscar365
    Mar 7, 2019 · Currently, final homologation from the FIA is only received in February or March each year, with the change potentially moving it up to as early ...Missing: timeline | Show results with:timeline
  19. [19]
    [PDF] PARTIE I PART I - FIA
    Published on 21.10.2025. FEDERATION. INTERNATIONALE. DE L'AUTOMOBILE. WWW.FIA.COM. 2025. ANNEXE J / APPENDIX J – ARTICLE 257A. Règlement Technique pour Voitures ...
  20. [20]
    Understanding Balance Of Performance - dailysportscar.com
    Aug 10, 2016 · BoP though is a cyclical game of give and take, which when done well results in excellent racing between a wide variety of cars.Missing: Group concept methodology
  21. [21]
    Inside SRO's BoP System - Sportscar365
    Feb 26, 2017 · “We created GT3 at the end of 2005 with the aim of developing customer GT racing using everything SRO and the FIA had learnt over the previous ...
  22. [22]
    A proposed integrated methodology for evaluation and adjustment ...
    Feb 3, 2025 · The GT World Challenge Europe and the other racing championships organized by SRO, do differentiate significantly from FIA WEC and IMSA ...
  23. [23]
    TR3 Parks Ferrari Over BoP Dispute; Reconsiders PWC Future
    Mar 10, 2018 · TR3 Racing will not take part in this weekend's pair of Pirelli World Challenge season-opening GT races due to a Balance of Performance dispute.
  24. [24]
    How does 'Balance of Performance' work? - The Race Torque
    Jan 25, 2019 · SRO uses an extensive system to set the BoP for all competing vehicles, starting with each model's homologation as a GT3 or GT4 contender. A ...
  25. [25]
    [PDF] SRO Balance of Performance FIA GT3 cars 2023 MOTEGI 16072023
    1. Remarks: 1.1 Additional weight must be installed in accordance with article 257A 1.2 1.2 In accordance with article 257A Appendix J 2023 , the fuel cell ...Missing: biofuel mandates
  26. [26]
    [PDF] Balance of Performance - GT World Challenge
    These balance of performance measures are the result of the tests, research, analysis and projections performed by SRO Ltd and are the sole property of SRO Ltd.
  27. [27]
    [PDF] 2021 SPORTING REGULATIONS - RACB
    Sep 30, 2020 · The GT Challenge Europe powered by AWS Sprint Silver Cup is intended for FIA GT3 cars according to the FIA homologation form. 4.4. Special Case ...
  28. [28]
    Lamborghini Takes Dominant Debut Win at Monza - Sportscar365
    Apr 12, 2015 · The dominant showing and shock win of the new Lamborghini came despite a late adjustment in the Balance of Performance on Monday, increasing the ...
  29. [29]
    Explainer: What is Balance of Performance? - GT REPORT
    Aug 22, 2025 · What is Balance of Performance in GT racing? Learn how BoP keeps races fair by adjusting weight, power, and aero, and what freedoms teams ...Weight Changes Through... · How Balance Of Performance... · Criticism And ControversyMissing: concept | Show results with:concept
  30. [30]
    Multiple Cars Lose Weight in Pre-Race BoP Adjustment
    Jun 21, 2025 · The BMW M4 GT3 EVO, Ford Mustang GT3 and Mercedes-AMG GT3 Evo have received weight reductions as part of a pre-race Balance of Performance adjustment.Missing: case studies examples
  31. [31]
    [PDF] balance of performance for chang international circuit
    1.11 Only springs homologated in the FIA GT3 homologation file can be used for FIA GT3 -038, FIA GT3-042. FIA GT3-051 and FIA GT3-052. For FIA GT3-. 053,FIA ...Missing: process | Show results with:process
  32. [32]
    SRO Motorsports Group - GT America
    SRO Motorsports Group is the established global leader in GT racing. The company is chaired by its founder and CEO, Stéphane Ratel.Missing: definition | Show results with:definition<|control11|><|separator|>
  33. [33]
    Cars 2025 | GT World Challenge Europe Powered by AWS
    2025 Cars · Aston Martin Vantage AMR GT3 EVO · Audi R8 LMS GT3 EVO II · BMW M4 GT3 · Corvette Z06 GT3.R · Ferrari 296 GT3 · Ferrari 488 GT3 · Ford Mustang GT3 ...
  34. [34]
    Motorsports technology meets the road: The 2022 Porsche 911 GT3
    Feb 16, 2021 · Porsche continues the tradition of transferring what it learns on the race track directly to cars designed for the road in its latest model, ...
  35. [35]
    homologation - GT3 R
    The new 911 GT3 will be unveiled to the world public for the very first time on February 28, 2006. This two-seater sports coupe will go on sale across Europe ...
  36. [36]
    Porsche 911 GT3 R tops world's endurance series
    Dec 20, 2024 · This resulted in over 20 overall victories, approximately 60 class wins and more than 150 podium finishes.
  37. [37]
    Lamborghini celebrates 10 years since maiden Huracán GT3 victory
    Apr 14, 2025 · A decade ago to the day, Lamborghini Squadra Corse delivered a sensational debut victory for the iconic Huracán GT3 model courtesy of Grasser Racing Team.Missing: dominance 2014-2020
  38. [38]
    NSX GT3 Evo25 Homologated to Race in Italian GT - Sportscar365
    May 2, 2025 · A new version of the Honda NSX GT3, dubbed the Evo25, has been homologated to run in the Italian GT Championship this season and will be campaigned by the Nova ...
  39. [39]
    FIA Enforce Minimum Production Rates For GT3 Race Cars, Acting ...
    Mar 9, 2018 · A minimum production number required for GT3 race cars will be enforced, 10 units must be made within 12 months as from the homologation date, ...<|control11|><|separator|>
  40. [40]
    World Championships - FIA Activity Report 2023
    It will be the first new car class since WEC was launched in 2012. LMGT3 is based on GT3 (the FIA's most popular consumer car class) and uses FIA's existing GT3 ...
  41. [41]
    Classes | 24 Hours of Le Mans 2025 - 24h du Mans
    The 24 Hours of Le Mans and FIA World Endurance Championship GT class is based on the current FIA GT3 platform. LMGT3 replaced the GTE technical regulations in ...
  42. [42]
    [PDF] official programme - WEC - FIA World Endurance Championship
    The competitiveness of the LMGT3 class was on full display, with five different teams emerging victorious throughout the season. The jewel in the crown came at.
  43. [43]
    About GT World Challenge Europe Powered by AWS
    Reserved for cars conforming to FIA GT3 regulations and using SRO Motorsports Group's globally recognised Balance of Performance (BOP) criteria, the 10 ...
  44. [44]
    The 2023 Fanatec GT Europe season in facts & figures
    Oct 24, 2023 · The Endurance Cup will begin at Circuit Paul Ricard (5-7 April) followed by the 100th anniversary CrowdStrike 24 Hours of Spa on 27-30 June. Up ...Missing: format unification
  45. [45]
    Asian Le Mans Series – Photo gallery of the 4 Hours of Shanghai ...
    Nov 25, 2019 · The 2019-2020 season of the Asian Le Mans Series is off to a stellar start. The 4 Hours of Shanghai this past Sunday 24 November was a nail- ...Missing: path | Show results with:path
  46. [46]
    Asian Le Mans Series - Wikipedia
    The Asian Le Mans Series (AsLMS) is an Asian sports car racing endurance series created by the Automobile Club de l'Ouest (ACO) and based in Asia.History · Format · Races · Champions
  47. [47]
    A guide to multi-class racing at the Total 24 Hours of Spa
    Jun 19, 2019 · The classes still exist, but they are now governed by the grading of the drivers, leading to the current line-up of Pro, Silver Cup, Pro-Am and Am Cup.
  48. [48]
    SRO Motorsports Group
    SRO Motorsports Group, the architect of modern GT racing.Contact Offices · Activities · News · History
  49. [49]
    ADAC GT Masters
    The ADAC GT Masters can be seen live on free-TV on TV partner SPORT1. The sports platform broadcasts all twelve races live and in full length.Nürburgring (ADAC Truck... · Salzburgring · Red Bull Ring · News
  50. [50]
    ADAC GT Masters | Audi MediaCenter
    ADAC has been organizing the GT Masters sports car racing series since 2007. Audi drivers have already won the overall title five times in the popular GT3 ...
  51. [51]
    British GT: what you need to know
    • 2-3 hour races: 1st 37.5, 2nd 27, 3rd 22.5, 4th 18, 5th 15, 6th 12, 7th 9 ... The driver with most fastest laps at the end of the year will be crowned. TYPICAL ...
  52. [52]
    weathertech sportscar championship the classes - IMSA
    The GT Daytona cars are enhanced (not defined by) technology and utilize the global FIA GT3 specification. The GTD class consists of cars from leading ...
  53. [53]
    IMSA SportsCar Championship - Wikipedia
    GT Daytona (GTD). edit. A BMW M4 GT3 GTD at Sahlen's Six Hours of the Glen. A class since 2016 that uses same specification cars as GTD Pro, but at least 1 ...
  54. [54]
    Campeonato Sudamericano de GT - Wikipedia
    Campeonato Brasileiro de GT was a sports car racing series based in Brazil organized by the SRO Latin America.Missing: SRO3 | Show results with:SRO3
  55. [55]
    GT World Challenge Australia Powered by AWS
    All the latest from GT World Challenge Australia. Your source for GT World Challenge Australia live streaming, live timing, news, team and driver profiles, ...2025 Calendar · Race Results · Cars 2025 · News
  56. [56]
    Bathurst 12 Hour - Australia's International Endurance Race ...
    Explore the thrilling world of motorsport at the Bathurst 12 Hour - Australia's premier endurance race. Discover the latest news, event details, ...
  57. [57]
    SUPER GT Planning Switch to One-Make Tires in 2027 - Sportscar365
    Oct 8, 2025 · SUPER GT looks set to switch to one-make tires for the 2027 season in a move that would bring an end to the Japanese championship's ...