Group GT3 explained

Group GT3, known technically as Cup Grand Touring Cars[1] and commonly referred to as simply GT3, is a set of regulations maintained by the Fédération Internationale de l'Automobile (FIA) for grand tourer racing cars designed for use in various auto racing series throughout the world. The GT3 category was initially created in 2005 by the SRO Motorsports Group as a third rung in the ladder of grand touring motorsport, below the Group GT1 and Group GT2 categories which were utilized in the SRO's FIA GT Championship, and launched its own series in 2006 called the FIA GT3 European Championship. Since then, Group GT3 has expanded to become the de facto category for many national and international grand touring series, although some series modify the ruleset from the FIA standard. By 2013, nearly 20 automobile manufacturers have built or been represented with GT3 machines.

Group GT3 allows for a wide variety of car types to be homologated with almost no limit on engine sizes and configurations or chassis construction or layout. GT3 cars must be based on mass production road car models that are being built and sold at the time of homologation. Performance of all the Group GT3 cars are regulated, either by the GT Bureau of the FIA or by a series' specific ruling body, through the balance of performance formulae that adjusts limits on horsepower, weight, engine management, and aerodynamics to prevent a single manufacturer from becoming dominant in the class. The cars in GT3 are designed to have a weight between 1200 kg and 1300 kg (2645 lbs and 2866 lbs) with horsepower between 500 hp and 600 hp. All cars have a very similar power to weight ratio but achieved either by high power and high weight such as the Mercedes-Benz SLS AMG[2] or low power and low weight such as the Porsche 911 GT3.[3] GT3 cars also have traction control, ABS, and built-in air jacks for quick pit stops.

History

The concept behind Group GT3 was introduced by Stéphane Ratel, head of the SRO Group and promoter of the FIA GT Championship in 2005.[4] The Group GT1 and Group GT2 cars in the FIA GT Championship required manufacturers to build a car based on regulations, and then develop that car to increase its performance, thus increasing the cost for the manufacturers and the customers wanting to race the cars. GT3 was envisioned as a category that would simplify the process by combining several existing cars from one-make series, such as the Porsche Supercup or Ferrari Challenge, as well as other race cars available from manufacturers that did not fit in GT1 or GT2, such as the Aston Martin DBRS9 or Dodge Viper Competition Coupe, and allow them to all compete on a level playing field through strict control of their performance by the FIA. This would allow drivers a bridge between smaller national series and the professional international FIA GT Championship.[5] Further, the category was conceived to use sprint formats for races, but manufacturers could develop and sell an upgrade kit for their cars to allow GT3 cars to be used in endurance races. A similar category, under the same name, had been in use in the British GT Championship which the SRO Group also organized.

The regulations and homologations for Group GT3 were prepared by the FIA and ready by the start of the 2006 season, with eight manufacturers represented as the first Balance of Performance test prior to the debut of the FIA GT3 European Championship.[6] The International GT Open, British GT Championship, Spanish GT Championship, and Italian GT Championship all created a category specifically for the FIA's new Group GT3 machines. The SRO Group expanded the category in 2007 with the launch of two new regional championships, the Brazilian GT Championship and the German ADAC GT Masters, exclusively running Group GT3 cars. The British GT Championship abandoned Group GT2 cars, promoting GT3 to their premiere category, while the Belcar series reorganized their class structure to introduce GT3 as their lead class. The French FFSA GT Championship also added a new GT3 category.

The Australian GT Championship brought on board the GT3 category in 2008 while the VLN Series and 24 Hours Nürburgring added GT3 categories in 2009. By 2011 Group GT3 was expanding into endurance racing with the formation of the Blancpain Endurance Series as well as winning overall at the Bathurst 12 Hour, Dubai 24 Hour, Malaysia Merdeka Endurance Race, and Spa 24 Hours, followed by a 24 Hours Nürburgring victory in 2012. Group GT3 also expanded to the United States with the Rolex Sports Car Series allowing several GT3 cars with specification wings, as well as the Japanese Super GT and Super Taikyu Series, while Nissan became the first Japanese manufacturer to sell a GT3 car. GT3 category cars also replaced Group GT1 cars in the FIA GT1 World Championship before rebranding as the FIA GT Series in 2013. After NASCAR merged their Grand-Am Rolex Sports Car Series with IMSA's American Le Mans Series, the new United SportsCar Championship allowed more types of GT3 cars to join the GTD category, and in 2016 limited the category to only GT3 spec machines.

On 9 March 2018, it was announced that the FIA World Motor Sport Council approved the introduction of a new process, in which a minimum production number required for GT3 race cars would be enforced. Ten units must be made within twelve months as from the homologation date, twenty units must be made within twenty-four months and so on.[7] Following dwindling manufacturer support for their Class One regulations, the Deutsche Tourenwagen Masters (DTM) series switched to the GT3 formula in 2021, abandoning its touring car origins.[8] In 2022, the FIA confirmed that the GTE cars in the FIA World Endurance Championship would be replaced by GT3 cars, racing in the LMGT3 class. This means GT3 cars will be able to participate in the 24 Hours of Le Mans from 2024 onward.[9]

Homologated cars

, 58 vehicles have gone through the homologation process with the FIA, although some of these homologations failed to be completed or were later revoked.[10] Homologations expire after a period of seven years unless a request for extension is made by the manufacturer. Currently, all homologations prior to GT3-025 have expired and not been renewed, although these expired cars are allowed to compete in national series under local approval (such as SCCA Trans-Am Series XGT classes) or in historic events such as Le Mans Classic.

Group GT3 cars can be built either directly by the automotive manufacturer or built by racing teams and tuning companies at the behest of the manufacturer. Other vehicles have been allowed to run alongside Group GT3 cars in various series under homologations from national ruling bodies, including the Mosler MT900R GT3, Ginetta G55 GT3, Chevron GR8 GT3, Radical RXC GT3, Scuderia Cameron Glickenhaus SCG 003C, Emil Frey Jaguar XKR G3, Acura TLX-GT, Renault Sport R.S. 01 GT3, Aston Martin Vulcan AMR Pro and Chevrolet Corvette C8.R GTD.

Homologation #ManufacturerModelDeveloperPhotoNotes
GT3-001MaseratiCoupe GranSport LightItaltecnica1 October 200631 December 2019
GT3-002DodgeViper Competition CoupeOreca1 October 200631 December 2019
GT3-003Aston MartinDBRS9Prodrive1 November 200631 December 2019
GT3-004LamborghiniGallardo LP520 GT3Reiter Engineering1 November 200631 December 2019
GT3-005CorvetteZ06.R GT3Callaway Cars1 May 200731 December 2019
GT3-006AscariKZ1-R GT3Ascari1 March 200731 December 2019
GT3-007Porsche911 GT3 CupPorsche Motorsport1 April 200731 December 2019997 generation 911 GT3, 2006 model only
GT3-008VenturiGT3 HeritageVenturi1 December 200831 December 2019
GT3-009FerrariF430 GT3Kessel Racing1 March 200731 December 2019
GT3-010Ford RacingMustang FR500C GTMultimatic Motorsports1 May 200731 December 2019
GT3-011[11] FordGT GT3Matech ConceptsNot available30 April 2008Homologation rescinded, replaced by GT3-016
GT3-012JaguarXKR GT3Apex MotorsportnoneHomologation failed
GT3-013MorganAero 8 GT3AutoGT Racing1 September 200731 December 2019
GT3-014LotusExige GT3Lotus Sport1 October 200731 December 2019
GT3-015Porsche911 GT3 Cup SPorsche Motorsport1 April 200831 December 2019
GT3-016FordGT GT3Matech Concepts1 May 200831 December 2019Engine design was changed from GT3-011
GT3-017AudiR8 LMSAudi Sport1 May 200931 December 2019Includes R8 LMS ultra
GT3-018BMW AlpinaB6 GT3Alpina1 May 200931 December 2019
GT3-019Ferrari430 Scuderia GT3Kessel Racing1 May 200931 December 2019
GT3-020DodgeViper Competition Coupe Series 2Oreca1 May 200931 December 2019
GT3-021JaguarXKR-S GT3Apex MotorsportnoneHomologation failed
GT3-022MorganAero Super Sport GT3AutoGT Racing1 May 200931 December 2019
GT3-023BMWZ4 GT3BMW Motorsport1 May 201031 December 2019
GT3-024LamborghiniGallardo LP600+ GT3Reiter Engineering1 May 201031 December 2019
  • Includes:
    • Gallardo FL2 GT3
    • Gallardo R-EX
GT3-025Porsche911 GT3 RPorsche Motorsport1 May 201031 December 2024997 generation 911 GT3
GT3-026CorvetteCallaway Z06.R GT3Callaway Cars1 May 201031 December 2019
GT3-027FordMustang VDS GT3Marc VDS Racing TeamnoneHomologation failed
GT3-028Mercedes-AMGSLS AMG GT3Mercedes-AMG1 May 201131 December 2019
GT3-029Ferrari458 Italia GT3Ferrari Competizione GT1 May 201131 December 2024
GT3-030NissanGT-R Nismo GT3Nismo1 April 201231 December 2026
GT3-031McLarenMP4-12C GT3McLaren GT1 April 201231 December 2019
GT3-032Aston MartinV12 Vantage GT3Prodrive1 May 201231 December 2019
GT3-033ChevroletCamaro GT3Sareni4 April 201231 December 2019
GT3-034MaseratiGranTurismo MC GT3Swiss Team1 November 201331 December 2020
GT3-035BentleyContinental GT3M-Sport1 April 201431 December 2023Second-generation Continental GT
GT3-036DodgeViper GT3-RRiley Technologies1 January 201531 December 2022
GT3-037McLaren650S GT3McLaren GT1 February 201531 December 2022
GT3-038AudiR8 LMSAudi Sport1 May 201531 December 2030
  • Second generation R8, includes:
    • R8 LMS Evo
    • R8 LMS Evo II
GT3-039CadillacATS-V.R GT3Pratt & Miller1 August 201531 December 2022
GT3-040LamborghiniHuracán GT3Lamborghini Squadra Corse1 December 201531 December 2023
  • Includes:
    • Huracán GT3 Evo
GT3-041Porsche911 GT3 RPorsche Motorsport1 March 201631 December 2025991 generation 911 GT3
GT3-042Mercedes-AMGGT3Mercedes-AMG1 March 201631 December 2029
  • Includes:
    • GT3 Evo
GT3-043BMWM6 GT3BMW Motorsport1 March 201631 December 2023
GT3-044Ferrari488 GT3Ferrari Competizione GT1 March 201631 December 2028
  • Includes:
    • GT3 Evo 2020
GT3-045CorvetteCallaway Corvette C7 GT3-RCallaway Cars1 June 201631 December 2026
GT3-046ToyotaLexus RC F GT3Toyota Gazoo Racing1 January 201731 December 2030
GT3-047HondaAcura NSX GT3JAS Motorsport1 March 201731 December 2028
  • Includes:
    • NSX GT3 Evo
    • NSX GT3 Evo22
GT3-048NissanGT-R Nismo GT3Nismo1 April 201831 December 2030Second-generation GT-R
GT3-049BentleyContinental GT3M-Sport1 April 201831 December 2025Third-generation Continental GT
GT3-050Porsche911 GT3 RPorsche Motorsport1 February 201931 December 2028991.2 generation 911 GT3
GT3-051Aston MartinVantage AMR GT3Prodrive1 March 201931 December 2031Second-generation Vantage
  • Includes:
    • Vantage AMR GT3 Evo
GT3-052McLaren720S GT3McLaren Motorsport1 April 201931 December 2026
  • Includes:
    • 720S GT3 Evo
GT3-053BMWM4 GT3BMW Motorsport1 January 202231 December 2029
GT3-054LamborghiniHuracán GT3 Evo 2Lamborghini Squadra Corse1 December 202231 December 2029
GT3-055Porsche911 GT3 RPorsche Motorsport1 December 202231 December 2030992 generation 911 GT3
GT3-056Ferrari296 GT3Ferrari Competizione GT1 January 202331 December 2030
GT3-057ChevroletCorvette Z06 GT3.RPratt & Miller1 December 202331 December 2030
GT3-058[12] FordMustang GT3Multimatic Motorsports1 March 202431 December 20307th Generation Mustang

Series

Since 2006, Group GT3 cars have been either exclusive to or in a distinct class in each of the following series:

Bold indicates an active series that currently uses Group GT3 cars.

Additionally, the following series allow certain Group GT3 cars to participate alongside other competitors:

External links

Notes and References

  1. Web site: Article 251 - 2012 Classification and Definitions . . 19 June 2012 . 6 July 2013.
  2. Web site: mercedes-benz-sls-amg-gt3.
  3. Web site: Porsche 911 GT3-R.
  4. Web site: A History of Racing Excellence . . 6 July 2013 . https://web.archive.org/web/20130801210438/http://www.sromg.com/about . 1 August 2013 . dead.
  5. Web site: 04/12/2005 Successful launch of FIA European GT3 Championship . . 12 April 2005 . 6 July 2013.
  6. Web site: Silverstone Supercar Showdown : FIA GT3 European Championship . . 2006 . 6 July 2013.
  7. News: FIA Enforce Minimum Production Rates For GT3 Race Cars – Acting Against 'GT3 Prototypes'. 9 March 2018. dailysportscar.com. Dailysportscar. 9 March 2018.
  8. Web site: DTM to use spec GT3 cars for new era in 2021 . Motorsport.com . Thukral . Rachit . 6 November 2020 . 13 December 2020.
  9. Web site: LMGT3 For FIA WEC In 2024 . 2023-10-14 . www.dailysportscar.com.
  10. Web site: 2019 Liste des Véhicules / N° Homologation . List of Vehicles / Homologation Number . PDF . . 3 April 2019 . 13 April 2019.
  11. Web site: Appendix I - List of Eligible Vehicles . . 9 June 2011 . 20 May 2016 .
  12. Web site: 2024 - List of Homologated Vehicle classified by Country .

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