Well, bimmer, let's not forget that the rules changes were put in place to slow the turbo cars and to favor French manufacturer Peugeot's return to Le Mans.
The Porsche 956/962 also had very little competition at Le Mans during the years it was winning. In the earliest years, the only "serious" competition that the 956 had was the Rondeau.
It wasn't until 1983 that the fast but fragile Lancia LC2's showed up. They remained the only threat to Porsche dominance of Group C racing until they withdrew in 1985.
1986 was the year that Tom Walkinshaw Racing, with Silk Cut sponsorship and factory backing, took everything that Fabcar and Bob Tullius's infamous Group 44 had learned in their Jaguar GTP program and began assaulting Porsche's dominance. In 1987, they won Le Mans, and they did it again in 1988.
1988 was also the year we saw the emergence of Toyota's 88C program, Nissan's series of Group C prototypes, and the Sauber-Mercedes alliance that led to an overall victory in 1989.
1989 being one of the hardest fought 24 Hours of Le Mans in history and also the debut of the Aston Martin AMR1.
By 1989, the 962's saving graces were reliability and strength in numbers. But the speed of the massive factory efforts of Nissan, Mazda, Toyota, Jaguar, Mercedes, and Aston Martin were proving more than the stretched 956 could handle.
1990 was another year of Jaguar triumph, and 1991 proved to be the grand fluke as Mazda's 787B came from 19th on the grid to win a mechanical failure laden 24 Hours, with all three Jaguars right behind it.
However, it must be noted that 1991 was also the year of the "category split" in Group C that was intended to introduce a more modern form of the Group C prototype with less reliance on turbochargers and downforce. The primary Category 1 cars were the new Peugeot 905's, while most everything else was a Category 2 car.
Unfortunately, the die was cast. 1992 was contended primarily by Cat. 1 cars, and the only Cat. 1 cars with realistic chances of winning were the Peugeots. Toyota's TSO10 put up a gallant fight to take 2nd, and Mazda's swan song in prototype racing, the Judd V10 powered MXR-01, captured a solid fourth, but only Toyota would return the next year to contend with Peugeot.
By 1994, all that was left of the mighty Group C class was a mishmash of prototypes titled "LMP1/C90". Expanded rules in the GT1 class, coupled with Dauer's run of "street legal" 962's, meant that a pair of Porsche 962's were able to run the GT1 class, where it claimed the final victory at Le Mans for a Group C car.
wow. What a report 👍 !
) but feel free to put the club in your sig. That goes for all of you guys. 
D'oh!
