Group Ais a set ofmotorsportregulations administered by theFIAcovering production derivedtouring carsfor competition, usually intouring car racingandrallying.In contrast to the short-livedGroup BandGroup C,Group A vehicles were limited in terms of power, weight, allowed technology and overall cost. Group A was aimed at ensuring numerous entries in races of privately owned vehicles.

Lancia Delta HF integrale Group A
Mitsubishi Lancer Evolution VI,Tommi Mäkinenedition, a Group A rally car

Group A was introduced by the FIA in 1982 to replace the outgoingGroup 2as "modified touring cars", whileGroup Nwould replaceGroup 1as "standard touring cars". During the early years there were no further formula for production based race cars. Cars from multiple Groups could contest theWorld Rally Championshipfor Manufacturers for example until 1997 when the specificWorld Rally Carformula was introduced as the only option. In recent years Groups A and N have begun to be phased out in eligibility in championships though they continue to form the homologation basis for most production based race car formulae including theGroups Rallywhich must first be homologated in Group A. Both Groups N and A, and the details of their differences are described in the FIAs International Sporting Code and several of its Appendices J articles.[1][2][3][4][5]

Homologation

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To qualify for FIA approval, 2,500 identical models have to be built in 12 consecutive months.[5]The homologation period lasts for every subsequent year of production and seven years after the year that less than 10% (250) are produced in one year and the model is considered out of production by the FIA.[2]Evolutions of the series production model homologated are permitted with a ET (Evolution of the type) extension applied.[2]Before 1993 the initial production requirement was 5000.[6]

However, not all manufacturers who built such models sold them all, some stripped the majority of them to rebuild them as stock models or used them to allow teams to use modified parts. One such example of this was Volvo with the 240 Turbo in 1985, an evolution of a model first homologated in 1982. After they had produced 500 such models, Volvo stripped 477 cars of their competition equipment and sold them as standard 240 turbo roadcars. As a result, afterFISA'sfailed attempt at finding an "Evolution" car in any European countries, Volvo were forced to reveal the names of all 500 "evo" owners to be permitted to compete.[7]


Touring car racing

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Ford Sierra RS500Group A touring car
ABMW M3 (E30)Group A DTM touring car

Fortouring carcompetition, vehicles such as theBMW 635 CSiandM3,Jaguar XJS,various turboFord SierrastheV8Ford Mustang,the turboVolvo 240T,Rover Vitesse,variousV8Holden Commodores,various turboNissan Skylines,including the4WD,twin turboGT-R,Mitsubishi Starion Turbo,Alfa Romeo 75(turbo) andGTV6,variousToyota Corollasand theToyota Supra Turbo Awere homologated. In theEuropean Touring Car Championship,Group A consisted of three divisions, Division 3 – for cars over 2500cc, Division 2 – for car engine sizes of 1600–2500cc, Division 1 for cars that are less than 1600cc. These cars competed in standard bodykits, with the production-derived nature required manufactures to release faster vehicles for the roads in order to be competitive on the track. Tyre width was dependent on the car's engine size.

The FIA continued to promulgate regulations for Group A touring cars until at least 1993,[8]however Group A survived in touring car racing in domestic championships until 1993. The GermanDeutsche Tourenwagen Meisterschaft(DTM) switched to a 2.5LClass 1formula in 1993, while in Japan in 1994 theJapanese Touring Car Championshiporganisers followed suit and switched classes like most other countries who had adopted theBritish Touring Car Championship-derivedSupertouringregulations. Many of the redundant Skylines found a new home in the form of theJGTC(Japanese GT Championship) with modified aerodynamic devices, showing its competitiveness whilst being up againstGroup C,former race modified roadcars and specially developed racers, like theToyota Suprasduring the earlier years.

TheConfederation of Australian Motor Sporthad originally announced in mid-1983thatAustraliawould adopt Group A from 1 January 1985 to replace the locally developedGroup C(not to be confused with FIAGroup Cracing cars) rules that had been in place since 1973. A class for the new Group A cars was included in selected Australian Touring Car endurance races in late 1984, prior to the replacement of Group C for 1985. The category would be officially termedGroup 3A Touring Carsfrom 1988.[9]From1993,CAMS replaced the existing Group A-based category with a new formula which would also be designated Group 3A Touring Cars.[10]This was initially open to five litreV8powered cars and two litre cars (later to become known asV8 SupercarsandSuper Touring Carsrespectively).

Hillclimb competitionsstill use Group A as a touring car class across Europe, while inAustraliaGroup A is now a historic class, though only actual cars raced from 1985 to 1992 (complete with log books) are allowed to compete.

Rallying

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Peugeot 306 Maxi
Colin McRae's 1995 WRC-winningSubaru ImprezaGroup A rally car

Under Group A in theWorld Rally Championship,the cars used were modified road cars, often based onturbocharged,four wheel driveversions of small cars such as theLancia Delta Integrale,Ford Escort RS Cosworth,Toyota Celica GT-Four,Nissan Pulsar GTI-R,Subaru Impreza WRX,Mazda 323 GT-Rand theMitsubishi Lancer Evolution.

The cars are modified for greater power and torque, and fitted with suspension and tyres specifically suited to the conditions of the specificrally,which may take place entirely on asphalt roads, different consistencies of gravel and dirt roads and even snow/ice-covered roads on some rallies held in northern Europe.

By 1990, Group A cars exceeded the performance of the defunct Group B cars on many events, because although they had far less power they had better handling and traction. They were also much safer.

Group A is still used as the basis for most rally competitions around the world, but the most competitive cars are limited-production prototypes, known askit cars(which competed in theFIA 2-Litre World Rally Cup),World Rally Cars,Super 1600andSuper 2000.

The last car to use the old Group A homologation requirement in the WRC Manufacturers' championship was theMitsubishi Lancer Evolution VI.Group A cars could continue to enter WRC rallies until 2018 and can still enter the FIA's regional rally championships today.

Series that used the Group A formula

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Cars

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References

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  1. ^"INTERNATIONAL SPORTING CODE"(PDF).
  2. ^abc"Classification and Definitions"(PDF).
  3. ^"General Prescriptions for Cars of Group N, A (and Extensions) and R-GT"(PDF).
  4. ^"Specific Regulations for Production Cars (Group N)"(PDF).
  5. ^ab"Specific Regulations for Touring Cars (Group A)"(PDF).
  6. ^"FIA Yearbook of Automotive Sport 1982"(PDF).
  7. ^"1983 Volvo 242 Group-A Turbo".
  8. ^Specific regulations for Touring cars (Group A), 1993 FIA yearbook of automobile sport, green section, pages 167–188
  9. ^Group 3A - Touring Cars, 1988 CAMS Manual of Motorsport, pages 228 to 233
  10. ^Group 3A - Touring Cars, 1993 CAMS Manual of Motorsport, pages 205 to 214
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