Group Bwas a set of regulations forgrand touring(GT) vehicles used insports car racingandrallyingintroduced in 1982 by theFédération Internationale de l'Automobile(FIA). Although permitted to enter a GT class of theWorld Sportscar Championshipalongside the more popular racing prototypes ofGroup C,Group B are commonly associated with the international rallying scene during1982to1986in popular culture, when they were the highest class used across rallying, including theWorld Rally Championship,regional and national championships.
The Group B regulations fostered some of the fastest, most powerful, and most sophisticated rally cars ever built and their era is commonly referred to as the golden era of rallying.[1]However, a series of major accidents, some fatal, were blamed on their outright speed with lack of crowd control at events.[2]After the death ofHenri Toivonenand his co-driverSergio Crestoin the1986Tour de Corse,the FIA banned the group from competing in the WRC from the following season, dropped its prior plans to introduceGroup S,and designatedGroup Aas the top-line formula with engine limits of 2000 cc and 300 bhp.[3]
In the following years, ex-rally Group B cars found a niche in theEuropean Rallycross Championshipuntil being dropped in 1993. By 1991 the World Sportscar Championship had moved on from Group B and C, with theGT championshipsformed in the nineties preferring other classes such as the newGroup GT.The last cars were homologated in Group B in 1993, though the FIA made provisions for national championships and domestic racing until as late as 2011.[4][5]
Overview
editNew FISA groups
editIn 1982 the FISA restructured the production car category ofAppendix Jto consist of three new groups. The outgoingGroup 1andGroup 2were replaced withGroup NandGroup Afor unmodified and modified production touring cars respectively. These cars had to have four seats (although the minimum size of the rear seats was small enough that some 2+2 cars could qualify) and be produced in large numbers. Theirhomologationrequirement was 5000 units in a 12 month period between 1982 and 1992. From 1993 the requirement reduced to 2500 units.[6][7]
Group B was for grand touring (GT) cars with a minimum two seats, redefined as sports grand touring cars in 1986. It combined and replacedGroup 3andGroup 4,two grand touring groups already used in rallying, and the production-derived special builds ofGroup 5used in circuit racing.[8]Group 5 had never been permitted in the World Rally Championship for Manufacturers.
Homologation
editThe number of cars required for homologation, 200, was just 4% of the other groups' requirement and half what was previously accepted in Group 4.[9]As the homologation periods could be extended by producing only 10% of the initial requirement each subsequent year, 20 in Group B's case compared to 500 for A and N, the group made motorsport and the championships more accessible for car manufacturers before taking the group's technicalities and performance into account. 'Evolutions' could be included within the original homologation without needing to produce a new initial run, allowing manufacturers to tweak various aspects of their competing car within the requirement to produce only 20 'evolved' cars. Together, these homologation rules resulted in Group B 'homologation specials' (cars that were only produced to satisfy the group quota rather than for sales) extremely rare, if they continued to exist beyond presentation to FIA officials in the first place.
Group B could be used to homologate production sports cars which could not be homologated in Group N or A, because they did not have four seats or were not produced in large enough numbers (e.g. cars like theFerrari 308,thePorsche 911,etc.). Further, the low production requirement encouraged manufacturers to usespace framechassis instead of bodyshells typically used in most series-production road cars.[8]
Existing cars within Group 2, Group 3 and Group 4 homologation could be transferred to Group B, with many being automatically transferred by the FISA secretariat.[10]
Regulations
editSpecific regulations
editGroup B followed Article 252 and 253, which covered such things as safety cages or parts defining a car like windscreens or rear view mirrors.[9]Article 256 covered the specific regulations for Group B with 5 paragraphs over half a page and includes most of the 7 pages of article 255 (Group A). The first two paragraphs of 256 covered the definition of (Sports) Grand Touring Cars (with aminimumof two seats) and the homologation requirements.
The section, "3) FITTINGS AND MODIFICATIONS ALLOWED" states, "All those allowed for Group A..." These rules give the base rule sets of what is allowed to be modified, how it can be modified, and what can be removed from the homologation road cars.
Max Engine Capacity | Minimum Weight | Max Tyre Width |
---|---|---|
1,000cc | 580 kg | 8 " |
1,300 | 675 | 8.5 |
1,600 | 750 | 9 |
2,000 | 820 | 10 |
2,500 | 890 | 11 |
3,000 | 960 | 11 |
4,000 | 1,100 | 12 |
5,000 | 1,235 | 13 |
over 5000 | 1,300 | 14 |
(Specific tyre widths are not specified for 2,500cc, but it falls into the 3,000cc category)
If a car has a supercharger (this includes turbochargers), then the engine capacity is considered 1.4 times larger for its other restrictions stated above. If the engine is a rotary or similar, then the capacity is considered to be "twice the volume determined between the maximum and minimum capacity of the combustion chamber." The equivalent capacity,,for a turbine engine is much more complicated, derived with the formula(1982) or(1986), whereis the "high pressure nozzle area" (cm2), and/is the "pressure ratio" of the compressor.[9][10]
Resulting builds
editUltimately, there were few restrictions on technology, design or materials permitted. For example, fibreglass bodywork was used in the case of theFord RS200,a car without a commercially available counterpart, thoughsilhouette race carsusing space frame chassis were still common even when consumer car equivalents were mass produced, for example in the case of the Peugeot 205 T16 or Lancia Delta S4.[11]
The rules provided for manufacturers who wanted to compete in rallying withmid-engineandRWDor4WD,but their RWD production models had been gradually replaced byFWDcounterparts. By reducing the homologation minimum from 400 in Group 4 to 200, FISA enabled manufacturers to design specialized RWD or 4WD rally car homologation specials without the financial commitment of producing their production counterparts in such large numbers.[12]
There were no restrictions onboost,resulting in the power output of the winning cars increasing from 250 hp in 1981, to there being at least two cars producing in excess of 500 by 1986, the final year of Group B in rally.[13][14]Turbocharged engines weren't common in commercial cars and had only been introduced since the early 1960s,[2]but in the early and mid-1980s engineers learnt how to extract extraordinary amounts of power from turbo engines. Some Group B manufacturers went further, Peugeot for example, installed an F1-derived Turbo Lag system to their engine, although the technology was new and not very effective.[1]Lanciatwinchargedtheir Delta S4, adding both a supercharger and turbocharger to their engine. When the Group N, A and B rules were decided, the weight/engine displacement restrictions were thought the only way to control speed. Nowadays, the power of turbo engines is limited by mandating arestrictorin the intake, and theGroups Rallyhierarchy for example, each have limits on weight/engine power (kg/hp).
Within all the groups, there were 15 classes based on engine displacement with a 1.4 equivalence factor applied forforced inductionengines. Each class had weight limits and wheel sizes. Notable classes for Group B were the 3000 cc class (2142.8 cc with turbo or supercharger), 960 kg minimum weight (Audi Quattro,Lancia 037); and 2500 cc (1785 cc), 890 kg (Peugeot 205 T16,Lancia Delta S4).
The originalRenault 5 Turbohad a 1.4 L engine so it was in the 2000 cc class. Renault later increased the size of the engine somewhat for the Turbo Maxi, so as to be able to fit larger tires (at the expense of somewhat higher weight).[15]TheFerrari 288 GTOand thePorsche 959were in the 4000 cc (2857 cc), 1100 kg class, which would have probably become the normal class for track racing if Group B had seen much use there.
Classes in Group B:[16]
Displacement | Weight | Wheel width (front & back) |
Cars | |
---|---|---|---|---|
Naturally-aspirated | Supercharged or turbocharged | |||
4000 cc | 2857 cc | 1100 kg | 12 " | Ferrari 288 GTO,Porsche 959 |
3000 cc | 2142.8 cc | 960 kg | 11 " | Audi Quattro,Lancia 037,MG Metro 6R4,Ford RS200 |
2500 cc | 1785 cc | 890 kg | 11 " | Peugeot 205 T16,Lancia Delta S4 |
2000 cc | 1397 cc | 820 kg | 10 " | Renault 5 Turbo |
Rallying
edit1982–1983
editThe existing Groups 1–4 were still permitted in the World Rally Championship during the first year of the new groups.[17]Although some freshly homologated Group B cars were entered from the first round in Monte Carlo, no car from the group podiumed at any of the season's 12 rallies.
Although the Audi Quattro was still in essence a Group 4 car, it carriedHannu Mikkolato the driver's title in 1983.Lanciahad designed a new car to Group B specifications, but theLancia 037still hadrear wheel driveand was thus less stable than the Audi over different surfaces (generally the Lancia had the upper hand ontarmac,but the Audi remained superior on looser surfaces such as snow and gravel). Nevertheless, the 037 performed well enough for Lancia to capture the manufacturers title, which was generally considered more prestigious at the time, with a rally to spare. In fact, so low was Lancia's regard for the Drivers Championship, they did not enter a single car into the season finale RAC Rally, despite the fact that driverWalter Röhrlwas still in the hunt for the title. This may have been, in part, becauseRöhrl"never dreamed of becoming a world champion."[18]
The low homologation requirements quickly attracted manufacturers to Group B.Opelreplaced their production-derivedAsconawith the Group BManta 400,andToyotabuilt a new car based on theirCelica.Like the Lancia 037, both cars were rear wheel drive, and while proving successful in national rallying in various countries, they were less so at the World Championship level, although Toyota won the 1983Ivory Coast Rallyafter hiring Swedish desert driving specialist, the lateBjörn Waldegård.
1984–1985
editIn 1984, Audi beat Lancia for both the manufacturers' title and the drivers' title, the latter of which was won byStig Blomqvist,but received an unexpected new competition midway through the year:Peugeothad joined the rallying scene with its Group B205 T16.The T16 also had four wheel drive and was smaller and lighter than the Audi Quattro. At the wheel was the 1981 driver's championAri Vatanen,with futureFerrariFormula Oneteam manager and FIA PresidentJean Todtoverseeing the operation. A crash prevented the T16 from winning its first rally but the writing was on the wall for Audi.
Despite massive revisions to the Quattro, including a shorterwheelbase,Peugeot dominated the 1985 season. Although not without mishap: Vatanen plunged off the road inArgentinaand was seriously injured when his seat mountings broke in the ensuing crash.Timo Salonenwon the 1985 champion title with five wins.
Although the crash was a sign that Group B cars had already become dangerously quick (despite Vatanen having a consistent record of crashing out while leading), several new Group B cars entered the rallying world in 1985:
- Late in the year, Lancia replaced their outclassed 037 with theDelta S4,which featured both aturbochargerand asuperchargerfor optimum power output.
- Fordreturned after several years away with theFord RS200and theFord Sierra RS Cosworth(though the latter went on to compete in Group A).
- Citroëndeveloped and entered theBX 4TC,which had proven too heavy and cumbersome to be successful.
- Rovercreated the distinctiveMetro 6R4,which featured boxy bodywork and a large spoiler mounted on the front of the car.
1986
editFor the 1986 season, defending championTimo Salonenhad the new Evolution 2 version of Peugeot's 205 T16 with ex Toyota driver,Juha Kankkunen.Audi's new Sport Quattro S1 boasted over 600 hp (450 kW) and a huge snowplow-like front end. Lancia's Delta S4 would be in the hands of the Finnish prodigyHenri ToivonenandMarkku Alén,and Ford was ready with its high tech RS200 withStig BlomqvistandKalle Grundel.
On the "Lagoa Azul" stage of thePortuguese RallynearSintra,Portuguese driverJoaquim Santoscrested a rise, turning to his right to avoid a small group of spectators. This caused him to lose control of his RS200. The car veered to the right and slid off the road into another group of spectators. Thirty-one people were injured and three were killed. All the top teams immediately pulled out of the rally and Group B was placed in jeopardy.
Disaster struck again in early May at theTour de Corse.Lancia'sToivonenwas the championship favorite, and once the rally got underway he was the pace setter. Seven kilometers into the 18th stage, Toivonen's S4 flew off the unguarded edge of a tightening left hand bend and plunged down a steep wooded hillside. The car landed inverted with the fuel tanks ruptured by the impact. The combination of a red hot turbocharger, Kevlar bodywork, and the ruptured fuel tank ignited the car and set fire to the dry undergrowth. Toivonen and co-driverSergio Crestodied in their seats.[19][20][21]With no witnesses to the accident it was impossible to determine what caused the crash other than Toivonen had left the road at high speed. Some cite Toivonen's ill health at the time (he reportedly was suffering from flu);[22]others suggest mechanical failure, or simply the difficulty of driving the car, although Toivonen, like Vatanen, had a career full of crashing out while leading rallies. Up until that stage he was leading the rally by a large margin, with no other driver challenging him.[22]
The crash came a year after Lancia driverAttilio Bettegahad crashed and died in his 037. While that fatality was largely blamed on the unforgiving Corsican scenery (and bad luck, as his co-driver,Maurizio Perissinot,was unharmed), Toivonen and Cresto's deaths, combined with the Portugal tragedy and televised accident of F1 driverMarc Surerin another RS200 which killed co-driverMichel Wyder,compelled the FIA to ban all Group B cars immediately for 1987. Audi decided to quit Group B entirely after the Corsica rally.
The final days of Group B were also controversial. The Peugeots were disqualified from theRally Sanremoby the Italian scrutineers as the 'skirts' around the bottom of the car were found to be illegal. Peugeot immediately accused the Italians of favouring Lancia.[citation needed]Their case was strengthened at the next event, theRAC Rally,when the British scrutineers passed the Peugeots as legal in identical trim. FISA annulled the result of the Sanremo Rally eleven days after the final round in the United States. As a result, the championship title was passed from Lancia's Markku Alén to Peugeot's Juha Kankkunen. Timo Salonen had won another two rallies during the 1986 season and became the most successful group B era driver with a total of seven wins.
Beyond WRC
editAlthough 1987 saw the end of Group B rally car development and their appearance on the world rally scene, they did not disappear. They were still permitted in regional championships providing they met the limit of 1600cc for four-wheel-drive or were homologated prior to 1984.[3]Future FIA presidentMohammed Ben Sulayemwas oneprivateerwho contested rounds of the 1987Middle East Rally Championshipin an Audi Quattro A2 and Opel Manta 400.[23]Independent teams would enter the European Championship too, though the limited options of permitted Group B cars were not as competitive or ubiquitous as newer Group A cars.[24][25]
Porsche's959never entered a WRC event, although it did compete in the Middle East championship and won theParis-Dakar Rallyin 1986. Peugeot adapted their T16 to run in theDakar Rally.Ari Vatanen won the event in 1987, 1989 and 1990. Improved Peugeot and Audi cars also competed in thePikes Peak HillclimbinColorado.Walter Röhrl's S1 Rally car won the Pikes Peak International Hill Climb in 1987 and set a new record at the time. Audi used their Group B experience to develop a production based racing car for theTrans-AmandIMSA GTOseries in 1988 and 1989 respectively.
Many ex-rally cars found homes in EuropeanRallycrossevents from the beginning of 1987 until the end of 1992. TheMG Metro 6R4and Ford RS200 became frequent entries in national championships. For 1993, the FIA replaced the Group B models in theEuropean Rallycross Championshipwith prototypes that had to be based on existing Group A models.
Group S
editThe cancellation of Group B, coupled with the tragedies of 1986, brought about the scrapping of Group B's proposed replacement:Group S.
Group S rules would have limited car engine power to 300 hp (225 kW). To encourage innovative designs, ten examples of a car would have been required forhomologation,rather than the 200 required for Group B. By the time of its cancellation, at least four Group S prototypes had been built: TheLancia ECV,theToyota MR2-based 222D, the Opel Kadett Rallye 4x4 (a.k.a. Vauxhall Astra 4S) and the Lada Samara S-proto, and new cars were also planned by both Audi (the 002 Quattro) and Ford (a Group S modification of the RS200). The cancellation of Group S angered many rally insiders who believed the new specification to be safer than Group B and more exciting than Group A.
The Group S concept was revived by the FIA in 1997 as theWorld Rally Carspecification, which persisted until 2021. WRC cars were limited to 380 hp (280 kW) and required 2500 examples of a model but, unlike Group S, also had to share certain parts with their base production models.
Circuit racing
editFrom their introduction in 1982 Group B found a home in theWorld Endurance Championship,a new name for the World Sports Car Championship, though were secondary to the racing prototype Group C cars. The1983 seasonhad the first significant entry list includingPorsche 930,BMW M1andFerrari 308 GTB LMvehicles. Porsche won the FIA GT Cup in 1983, handing it over to BMW in 1984 and 1985. From 1986 the championship retired Group B in favor ofIMSAregulated cars and the championship became known as the World Sports-Prototype Championship the same year.
ThePorsche 961prototype, intended to be the basis for a Group B homologation, won the GTX class at the24 Hours of Le Mans 1986race but crashed and caught fire in 1987. The Ferrari 288 GTO was built and sold the minimum requirement of cars to the public, but never saw action in its category. TheWSPCgrids it was intended for was filled up by a batch of Group C cars (there would be no production sports car-based racers in European racing, including Le Mans, until1993), but it saw limited use in anIMSA GTOrace in 1989.
Legacy
editThe era of Group B is often considered one of the most competitive and compelling periods in rallying.[26]The combination of a lightweight chassis, sophisticated aerodynamics and massive amounts of horsepower resulted in the development of a class of cars whose performance has not yet been surpassed within their category, even three decades later.[27]In reference to their dubious safety record, the class has also earned an unsavory nickname among rally enthusiasts: "Killer B's".[27]Group B also became synonymous with high-performance and danger amongst the motorsport community. In contrast to this, many enthusiasts refer the Group B era as the Golden Age of Rallying.[28][29][30][31]
Manyracing video gamesfeature Group B cars for the player to drive. The 2017 video gameGran Turismo Sportfeatures a rally car category known as "Gr. B", an obvious homage to Group B. This particular category features predominantly fictional rally cars based on newer models, such as theMitsubishi Lancer Evolution Xand theSubaru WRX STI,although it does include the Pikes Peak version of the Audi Quattro.[32]For the game's sequel,Gran Turismo 7,an actual Group B car (the Peugeot 205) was added to the class.
Cars
editGroup B
editThis list includes under-development and prototype cars that did not receive homologation.
Car was transferred from Group 4 homologation | |
Car was rehomologated for Group A |
Car | Class | N° | Start | Note | Source |
---|---|---|---|---|---|
Alfa Romeo GTV 2000 Turbodelta | B/12 | B-238 | 1 March 1983 | [33] | |
Alfa Romeo Alfasud Sprint 6C | Prototype | ||||
Alfa Romeo SZ | B/12 | B-297 | 1 November 1992 | [34] | |
Alpine A310 V6 | B/12 | B-204 | 1 February 1982 | [35] | |
Alpine A610 | B/12 | B-299 | 1 April 1993 | [36] | |
Audi Quattro A1 | B/12 | B-229 | 1 January 1983 | [37] | |
Audi 80 Quattro A2 | B/12 | B-231 | 1 January 1983 | [nb 1] | [37] |
Audi Quattro A1 | B/12 | B-242 | 1 May 1983 | [nb 2] | [37] |
Audi Quattro A2 | B/12 | B-243 | 1 May 1983 | [37] | |
Audi Sport Quattro S1 | B/12 | B-243 | 1 May 1984 | [37] | |
Audi Sport Quattro E2 | B/12 | B-264 | 1 July 1985 | [38] | |
BMW M1 | B/12 | B-240 | 1 March 1983 | [39] | |
Citroën BX 4TC | B/12 | B-279 | 1 October 1986 | [40] | |
Citroën Visa Trophée | B/9 | B-201 | 1 January 1982 | [40] | |
Citroën Visa Chrono II | B/10 | B-219 | 1 October 1982 | [40] | |
Citroën Visa 1000 Pistes | B/10 | B-258 | 1 March 1984 | [40] | |
Daihatsu Charade 926 Turbo | B/9 | B-268 | 1 January 1985 | [41] | |
Daihatsu Charade DeTomaso 926R | Under 1300cc | Prototype | [41] | ||
Ferrari 308 GTB Michelotto | B/12 | B-220 | 1 October 1982 | [42] | |
Ferrari 308 GTB Michelotto | B/12 | B-236 | 1 January 1983 | [42] | |
Ferrari 308 Quattrovalvole | B/12 | B-241 | 1 April 1983 | [42] | |
Ferrari 288 GTO | B/12 | B-273 | 1 June 1985 | [42] | |
Ferrari 288 GTO Evoluzione | Prototype | [nb 3] | [42] | ||
Ferrari F40 | B/12 | B-293 | 1 December 1989 | [34] | |
Ford RS200 | B/12 | B-280 | 1 February 1986 | [43] | |
Ford Escort RS 1700T | Prototype | [nb 4] | [43] | ||
Ford Escort RS Turbo | B/12 | B-270 | 1 April 1985 | [nb 5] | |
Ford Sierra RS Cosworth | B/12 | B-286 | 1 August 1986 | [nb 6] | |
FSO Polonez 2500 Racing | Prototype | 1 April 1985 | |||
FSO Polonez 2000 Rally | B/11 | B-261 | 1 April 1984 | ||
FSO Polonez 2000 Turbo | Under 2000cc | Prototype | |||
Giocattolo Group B | Prototype | ||||
Jaguar XJS | B/12 | B-292 | 1 February 1988 | [44] | |
Lada 2105 VFTS | B/10 | B-222 | 1 October 1982 | [45] | |
Lada Samara EVA | Prototype | [45] | |||
Lamborghini Countach 5000QV | B/12 | B-291 | 1 January 1988 | [46] | |
Lancia Rally 037 | B/12 | B-210 | 1 April 1982 | [47] | |
Lancia Delta S4 | B/12 | B-276 | 1 November 1985 | [47] | |
Mazda RX-7 | B/12 | B-255 | 1 February 1984 | [48] | |
Mercedes-Benz 190E Cosworth | Prototype | [nb 7] | [49] | ||
MG Metro 6R4 | B/12 | B-277 | 1 November 1985 | [50] | |
Mitsubishi Lancer 2000 Turbo | B/12 | B-230 | 1 January 1983 | [51] | |
Mitsubishi Starion 4WD | Prototype | [nb 8] | |||
Moskvitch-Aleko 2141-KR | Prototype | [52] | |||
Nissan 240RS | B/12 | B-233 | 1 January 1983 | [53] | |
Opel Ascona 400 | B/12 | B-221 | 1 November 1982 | ||
Opel Manta 400 | B/12 | B-237 | 1 March 1983 | [54] | |
Peugeot 205 T16 | B/12 | B-262 | 1 April 1984 | [55] | |
Peugeot 305 V6 | Prototype | [nb 9] | |||
Peugeot 504 Turbo Injection | B/12 | B-252 | 1 November 1983 | ||
Peugeot 504 Pickup | B/11 | B-228 | 1 December 1982 | [55] | |
Porsche 924 Carrera GT | B/12 | B-203 | 1 January 1982 | [56] | |
Porsche 911 SC RS | B/12 | B-207 | 1 March 1982 | [56] | |
Porsche 911 Turbo | B/12 | B-208 | 1 January 1982 | [56] | |
Porsche 928S | B/12 | B-209 | 1 January 1982 | [56] | |
Porsche 911 Carrera | B/12 | B-282 | 1 June 1986 | [56] | |
Porsche 911 Carrera 2 | B/12 | B-294 | 1 September 1990 | [57] | |
Porsche 911 Carrera 4 | B/12 | B-295 | 1 September 1990 | [58] | |
Porsche 911 Carrera RS | B/12 | B-296 | 1 March 1992 | [59] | |
Porsche 911 Turbo | B/12 | B-298 | 1 April 1993 | [60] | |
Porsche 928S | B/12 | B-283 | 1 June 1986 | [56] | |
Porsche 944 Turbo | B/12 | B-284 | 1 June 1986 | [56] | |
Porsche 959 | Prototype | [56] | |||
Porsche 961 | Prototype | ||||
Premier 118NE | B/9 | B-290 | 1 November 1988 | [61] | |
Renault 5 Turbo "Cévennes" | B/11 | B-205 | 1 February 1982 | [62] | |
Renault 5 Turbo "Tour de Corse" | B/11 | B-234 | 1 January 1983 | ||
Renault 5 Maxi Turbo | B/12 | B-267 | 1 December 1984 | ||
Seat Fura Crono 1.6 | B/10 | B-244 | 1 May 1983 | ||
Škoda 130 LR | B/9 | B-269 | 1 January 1985 | [63] | |
Subaru MP-1 Utility | B/11 | B-259 | 1 March 1984 | [64] | |
Subaru XT 4WD Turbo | B/12 | B-275 | 1 October 1985 | [65] | |
Talbot Sunbeam Lotus | B/12 | B-227 | 1 December 1982 | [66] | |
Talbot Horizon | Prototype | [nb 2] | [66] | ||
Talbot Samba Rallye | B/9 | B-232 | 1 January 1983 | [66] | |
Toyota Celica Twin-Cam Turbo | B/12 | B-239 | 1 March 1983 | [67] |
Notes
- ^Re-homologated as Group A, homologation number 5156
- ^ab2145cc engine upgrade
- ^Car built to Group B regulations but not homologated; project abandoned in favor of F40
- ^Car built to Group B regulations but not homologated; project abandoned in favor of RS200
- ^Re-homologated as Group A, homologation number 5272
- ^Re-homologated as Group A, homologation number 5323
- ^Abandoned once the Audi Quattro became known.
- ^Nothomologatedin time before Group B ended, ran asprototype
- ^Car built to Group B regulations but not homologated; project abandoned in favor of 205 T16
Group S
edit- Audi Sport Quattro RS 002[37]
- Ford RS200
- Lada Samara S-proto
- Lancia ECV
- Mazda RX7S[68]
- Opel Kadett Rallye 4x4/Vauxhall Astra 4S
- Peugeot 405 T16 GR
- SEAT Ibiza Bimotor[69]
- Škoda 130LR Evolution
- Toyota 222D(based upon MR2)
Notable drivers
editReferences
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