andi said:
They stuck 500bhp in one, and it got round estoril in a time that would have put in 6th on the grid for the grandprix that year
Taken from SportsCarForums:
Rallying today is growing in leaps and bounds; More manufacturers than ever are taking part in the world rally championship, and even more are participating in various national championships. Last year, 16.5 million people spectated at the 14 rounds of the WRC, the highest live attendance figure of any form of motorsport. The drivers are among the best in the world, and the cars are extremely quick and very entertaining to watch.
But there was a time when rallying was very different. The early 1980s saw a category created specifically for manufacturers who wanted to show off their engineering capabilities; Group B was born. The Group B rally supercars quickly evolved into 500+ horsepower, four-wheel-drive chest-thumping beasts with space frames, kevlar bodywork, and many other high-tech pieces. The cars reached a point where many wondered if the cars had reached a point where the drivers could not fully control them. For instance, the Lancia Delta S4 could accelerate from 0 to 100 km/h in 2.3 seconds on a gravel road. Henri Toivonen drove an S4 around Estoril, the Portuguese Grand Prix circuit, so quickly that he would have qualified sixth for the 1986 Portuguese Grand Prix. Nigel Mansell sampled a Peugeot 205 T16 and said it could out-accelerate his F1 car. And, perhaps most impressive (frightening?), the driver's reaction times were cut in half compared with previous rally cars. The Group B rally cars and their pilots were the stuff of which legends are made.
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The end of Group B
The pace of technology in Group B was astounding, but FISA was planning Group S. Group S was to be a class which would allow manufacturers to produce highly futuristic cars, and only ten copies would be required for homologation. However, the inevitable finally happened: during the 1986 Port Wine rally in Portugal, a Ford RS200 left the road on a spectator stage, killing three and injuring dozens; after the crash, all the works teams withdrew from the rally. But the final blow for Group B came on May 4, 1986.
Lancia's lead driver, Henri Toivonen, was dominating the 1986 championship and the Tour de Corse rally when his S4 left the road during a twisty tarmac stage. The car went off the edge of the road, hitting trees and rocks while sliding down a hillside. Toivonen and his navigator, Sergio Cresto, were killed. There were no witnesses to the crash, and the subsequent fire completely destroyed the car, leaving the remains unrecognizable as a vehicle. The heat from the fire was so intense that all that remained of the car was a blackened space frame. Group B and Group S were instantly cancelled for the 1987 season; Ford and Audi withdrew from Group B immediately. The other works teams decided to see the season out.
Imagine what group S would have produced
Now you know exactly why the WRC cars have the 34mm turbo restrictor. Imagine a WRC evo with the Norris engine or a Focus WRC with a reyland job