Group R

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In relation to motorsport governed by the Fédération Internationale de l'Automobile, Group R refers to a set of regulations providing production-derived vehicles for rally competition. The Group R regulations were created in 2008 as a gradual replacement for Group A and Group N rally cars.[1][2] To comply with Group R regulations, a car must be homologated in Group A (or in some cases Group N) and receive one or more VR extensions. Each VR extension is a set of homologated parts and modifications, designed and sold (as a kit or as a complete car) by the manufacturer. As part of its structure, the Group R regulations have a provision for GT cars, known as RGT.[3][4][5]


Group R consists of six classes, designated R1, R2, R3, R4, R5 and RGT; some of these groups contain their own sub-groups, with cars allocated to each group based on their weight, engine size and powertrain. The first batch of rules, introduced in 2008, featured R1, R2 and R3 classes, reserved to two-wheels drive cars with atmospheric engines up to 2000cc. Supercharged engines were allowed only in R3T (petrol) and R3D (diesel) classes. Additional regulations were issued in 2011 covering R4 and RGT classes; the R4 was conceived as an evolution step for previously homologated Group N4 (turbocharged, all-wheel drive) cars. The R5 class, designed to replace Super 2000 cars, was introduced in 2013. Since 2015 the R1, R2 and R3 classes allow supercharged engines with a 1.5 equivalency factor for displacement.

Teams and drivers are sorted into a specific championship based on the class their car fits into.[6] Cars classified as R1, R2 and R3 contest the World Rally Championship-3 for two-wheel drive cars; especially-prepared R3T cars are also used in the Junior World Rally Championship. Cars classified as R4 and R5 compete in the World Rally Championship-2 alongside existing Super 2000 and Group N Production Cars. Cars classified as RGT compete in the R-GT Cup.

Category Class Engine
Engine type Fuel Minimum
Drivetrain Homologation
RC1 WRC 1600cc Turbocharged Petrol 1230 kg Four-wheel drive 2500 per year WRC Citroën C3 WRC
RC2 R5 1600cc Turbocharged Petrol 1230 kg Four-wheel drive TBA WRC-2, WRC-2 Pro Škoda Fabia R5
R4 Over 2000cc Turbocharged Petrol 1300 kg[7] Four-wheel drive[7] n/a Subaru Impreza R4
RC3 R3T Up to 1620cc Turbocharged Petrol 1080 kg Two-wheel drive 2500 per year WRC-3, JWRC Citroën DS3 R3T[8]
R3C 1600cc to 2000cc Naturally aspirated Petrol 1080 kg Two-wheel drive 2500 per year WRC-3 Renault Clio R3C
1067cc to 1333cc Turbocharged none
R3D Up to 2000cc Supercharged Diesel 1150 kg Two-wheel drive 2500 per year Fiat Grande Punto R3D
RC4 R2B 1390cc to 1600cc Naturally aspirated Petrol 1030 kg Two-wheel drive 2500 per year Ford Fiesta 1.6 R2[9]
927cc to 1067cc Turbocharged Ford Fiesta Ecoboost R2
R2C 1600cc to 2000cc Naturally aspirated Petrol 1080 kg Two-wheel drive 2500 per year none
1067cc to 1333cc Turbocharged none
RC5 R1A Up to 1390cc Naturally aspirated Petrol 980 kg Two-wheel drive 2500 per year Toyota TMG Yaris R1A[2]
Up to 927cc Turbocharged none
R1B 1390cc to 1600cc Naturally aspirated Petrol 1030 kg Two-wheel drive 2500 per year Renault Twingo RS R1
927cc to 1067cc Turbocharged none
RGT No limit Turbocharged or supercharged Petrol TBA Two-wheel drive TBA R-GT Cup Lotus Exige R-GT[4]


The R4 class is for cars competing under Group N regulations for production cars prior to 2013. No new cars will be homologated under Group N regulations.

The FIA created a new R4 Kit class as a replacement for the R4 class. The R4 Kit cars have a standard engine, four-wheel drive powertrain and suspension. In January 2017, French racecar manufacturer Oreca was selected as supplier.[10] The kit will cost €85,000 plus taxes, including a 1.6L 260 hp turbo engine.


Until 2014 there was no specific championship for cars entered under R-GT regulations, and R-GT cars were ineligible to score points in any existing championship outside the World Rally Championship. The FIA R-GT Cup for R-GT cars started in 2015 sharing some events from the WRC and ERC events.[11]


The following models have been homologated by the FIA under Group R regulations:[12]





Based on Group N

New vehicles under the FIA R4 project in partnership with Oreca:[15][16]

  • Audi A1 SSM R4 (developed by Signed Streets Motorsport - Austria)[17]
  • Dacia Sandero R4 (digital concept by Oreca)[18]
  • Fiat 500X R4 (digital concept by Oreca)[19]
  • Ford Fiesta R4[20]
  • Lada Kalina R4 (digital concept by Oreca)[21]
  • Nissan Micra R4 (digital concept by Dytko Sport)[22]
  • Toyota Etios R4 (developed by Oreca)[23]
  • Toyota Yaris R4 (developed by Evolve Sport)[24]


Škoda Fabia R5

Cars approved for competition in the World Rally Championship-2:

Cars approved for competition in Regional Championships (European Rally Championship, Asia-Pacific Rally Championship, Codasur South American Rally Championship) and national competitions:


Lotus Exige R-GT


  1. ^ "Specific regulations for cars in Groups R" (PDF). Fédération Internationale de l'Automobile. 19 May 2012. Retrieved 23 August 2012.
  2. ^ a b Elizalde, Pablo (13 August 2012). "Toyota unveils entry-level WRC Yaris". Haymarket Publications. Retrieved 23 August 2012. Toyota said the car will be able to compete in the World Rally Championship under the R1A regulations once it is homologated by the FIA before the end of the year.
  3. ^ "Specific Regulations for GT Production Cars" (PDF). Fédération Internationale de l'Automobile. 19 May 2012. Retrieved 23 August 2012.
  4. ^ a b c Paur, Jason (23 December 2011). "Lotus Shakes Down Its Rally-Spec Exige". Autopia. Wired. Retrieved 23 August 2012.
  5. ^ Holmes, Martin (19 December 2011), The Return of the Rallying Sports Car, archived from the original on 26 April 2012, retrieved 23 August 2012
  6. ^ "Exciting changes for 2013 WRC". WRC Official Website. 21 Sep 2012. Retrieved 1 Oct 2012.
  7. ^ a b "Article 260 (2014) - Specific Regulations for Group R Cars - published on 11.04.2014" (PDF). Federation Internationale de l'automobile. Retrieved 18 April 2014.
  8. ^ "81e Rallye Monte Carlo 2013 Entry List" (PDF). Monte Carlo Rally. 20 December 2012. Retrieved 21 December 2012.
  9. ^ "Junior WRC is where it's at, says top rally man". 6 December 2012. Retrieved 20 January 2013.
  10. ^ R4 Kits for regional and national rally cars - FIA, 27 January 2017
  11. ^ "WRC welcomes FIA R-GT Cup". World Rally Championship. 29 September 2014. Retrieved 2 October 2014.
  12. ^ Fernischumi (3 April 2013). "Las categorías de los rallyes: Grupo N, RGT, R4, R3, R2 y R1 (2/2)".
  13. ^ "Citroen DS3 R3 rally car for FIA Group R3T regulations".
  14. ^ Carlos Argüelles-Meres Cueto. "El Renault Clio R3T progresa adecuadamente". Archived from the original on 2013-11-29.
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  17. ^ "Signed Streets Motorsport". Retrieved 2019-08-14.
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