1992 World Sportscar Championship

From the start, the 1992 season was in doubt. The FIA planned to cancel the season due to a lack of entrants, but pressure from Peugeot, who had poured a large sum of money into the sport and did not wish to see that money wasted after only a year of competition, convinced the FIA that there would be enough entries to make the season worthwhile. With this, the FIA allowed the season to move forward.

The FIA's vision of a single unified formula for the Sportscar World Championship that would truly equal that of Formula One was finally into place following the development of 3500 cc sportscars in the previous seasons. This formula of engine equalisation took over the series, eliminating any previous engine that did not fit into the 3.5 L category. Thus every car had similar engines, and new subclasses were born: C1 for works supported teams with engines of 10 or 12 cylinders and usually backed by factory teams, and FIA Cup for privateer teams, usually running the Ford Cosworth DFR V8. FIA Cup cars were required to conform with Group C regulations with the exceptions of a lower prescibed minimum weight (700 kg v 750 kg), a limitation on engine revolutions and the prohibition of carbon disc brakes.[3]

With the elimination of the previous C2 class, it required manufacturers such as Mazda and Porsche to build entirely new engines, and due to the large change in engine dimensions compared to what they had used in 1991, all new chassis as well. Porsche already had an F1 engine in their 3512 unit used by Footwork, but the engine design was found to be lacking. Porsche, suffering financially at the time, decided that it was no longer worth not only improving the 3512, but also replacing the 962 chassis, and decided not to return.

Mazda, having accomplished their goal of winning the 24 Hours of Le Mans in 1991 with their famed rotary engine, were left without the ability to use their rotary engine anymore in 1992. Since Mazda entered sportscar racing mostly to push their rotary designs, Mazda decided to continue on into 1992 for advancement of the overall brand, but with a less ambitious development programme. Mazdaspeed bought customer versions of the Jaguar XJR-14 and slightly modified them into the Mazda MXR-01 while the engines were customer Judd GV V10s. This effort saved large amounts of money for the company while keeping their name involved in the sport.

Of the teams that already had compliant 3.5 L cars racing in 1991, their continuation into 1992 varied.

Mercedes-Benz, alongside partner Sauber, pushed ahead with plans for a car in 1992. Development of the C292 was underway, as was construction of a new set of Flat-12s. However, after various faults in the construction of the engines in 1991, further problems led to large monetary losses for the company, forcing them not to return for 1992.

Jaguar, who had been in sportscar racing with the XJR project since 1984, and were not completely happy with the performance of the XJR-14 during the 1991 season, had already announced their departure from the series. Customer XJR-14s were promised for 1992 from newcomers RMR racing as well as Gee Pee Cars.

Of the smaller privateer teams, Brun Motorsport's development of the lacking C91 chassis cost them a great deal, and with the loss of cheap customer cars like the Porsche 962, they decided not to return. Other teams which had previously used the 962 also failed to return, including Kremer Racing and Team Salamin Primagaz. Courage Compétition was unable to find the money to continue development of their own chassis, and decided to instead concentrate solely on the 24 Hours of Le Mans. Konrad Motorsport, whose KM-011 chassis was also lackluster in 1991, claimed they were attempting to push on with Lamborghini backing into 1992. Euro Racing found enough cash to replace their ageing Spice chassis with the new Lola T92/10s with Judd powerplants, and promised to be on the grid immediately for 1992. Chamberlain Engineering also planned to continue as the factory backed Spice Engineering squad.

Peugeot and Toyota, who had campaigned their 905 and TS010s respectively, remained in the sport mostly unchanged. Both cars underwent evolutionary changes in preparation for 1992, while the basic chassis and engines remained the same.

A revival of the BRM name was also announced for 1992, using their own newly built P351 chassis and V12 engine. Unfortunately, even with the apparent addition of BRM, the grid in comparison between 1991 and 1992 was looking bleak, with the loss of a large number of privateer teams, as well as the loss of two major manufacturers (with a third being downgraded to privateer status) with only one possible new replacement.

When the 1992 season was provisionally approved in December 1991, the FIA published a ten race calendar for the season, composed of 1000 km and 500 km races, as well as the 24 Hours of Le Mans.

Initial schedule

Rnd	Race	Circuit	Date
1	500 km of Autopolis	Autopolis	5 April
2	1000 km of Monza	Autodromo Nazionale Monza	26 April
3	500 km of Silverstone	Silverstone Circuit	10 May
4	500 km of Jarama	Circuito Permanente Del Jarama	26 May
5	24 Hours of Le Mans	Circuit de la Sarthe	20 June 21 June
6	1000 km of Donington	Donington Park	19 July
7	1000 km of Nürburgring	Nürburgring	2 August
8	1000 km of Suzuka	Suzuka Circuit	30 August
9	1000 km of Mexico City	Autódromo Hermanos Rodríguez	13 September
10	1000 km of Jerez	Circuito Permanente de Jerez	4 October

By January 1992, the FIA shortened the calendar to eight events, with the Monza and Donington events being cut down to 500 km. Magny-Cours was also brought in to replace some fly-away events.

The Jerez round remained on the final calendar, but was cancelled during the middle of the season when track officials failed to update the track to the FIA's standards.

Final schedule

Rnd	Race	Circuit	Date
1	Trofeo F. Caracciolo (500 km)	Autodromo Nazionale Monza	26 April
2	BRDC Empire Trophy (500 km)	Silverstone Circuit	10 May
3	24 Hours of Le Mans	Circuit de la Sarthe	20 June 21 June
4	Triton Showers Trophy (500 km)	Donington Park	19 July
5	Suzuka 1000km	Suzuka Circuit	30 August
6	Championnat du Monde de Voitures de Sport (500 km)	Circuit de Nevers Magny-Cours	18 October

Prior to the BRDC Empire Trophy at Silverstone, race organisers attempted to convince teams to shorten the race distance to approximately 250 km in order to boost ticket sales. However, Toyota vetoed the decision and the race remained at its original distance.