In 1980, a German car maker, Audi, at that time not noted for their interest in rallying, introduced a rather large and heavy coupé version of their family saloon, installed a turbocharged 2.1 litre five-cylinder engine, and fitted it with four-wheel drive. Thus the Audi Quattro was born. International regulations had prohibited four-wheel drive; but FISA accepted that this was a genuine production car, and changed the rules. The Quattro quickly became the car to beat on snow, ice or gravel; and in 1983 took Hannu Mikkola to the World Rally Championship title. Other manufacturers had no production four-wheel drive car on which to base their response, so FISA was persuaded to change the rules, and open the Championship to cars in Group B. This allowed cars to be much further removed from production models, and so was created a generation of rallying supercars, of which the most radical and impressive were the Peugeot 205 T16, Renault 5 Turbo and the Lancia Delta S4, with flimsy fibreglass bodies roughly the shape of the standard car tacked onto lightweight spaceframe chassis, four-wheel drive, and power outputs reportedly as high as 600 hp (450 kW). Further Group B cars were developed by Ford (the RS200), British Leyland (the Metro 6R4) and many others, but these were less successful.
A Fatal Accident Inquiry into the incident concluded, on 6 September 2011, that McRae was at fault for the avoidable helicopter crash that led to his death and the death of his passengers. Sheriff Nikola Stewart stated, after the 16-day inquiry, that McRae had been engaged in "unnecessary and unsafe" low-level flying at the time of the crash.
But this wasn’t enough. By 1984 rallying was all but deregulated, and Audi Sport introduced the Sport Quattro: a shortened, more powerful version of the original coupe, and regulations insisted that 214 were built for the road. With its wheelbase shortened a meaningful 12.6 inches between the B- and C-pillars, the Sport Quattro was more nimble and the bodywork featured numerous GRP and carbon-Kevlar panels. A massive KKK-K27 turbocharger helped increase power to 302hp on the road, while Stig Blomqvist had access to over 450hp in the rally Group B version.
Starting in 2011, rules for WRC cars changed to be more restrictive. Now regulations were derived from Super 2000 cars with a different aerodynamic kit. The cars were smaller models (there was no longer a minimum 4m length), with a 1600 cm3 direct injection turbo-charged engine with a 33 mm diameter air restrictor and a maximum pressure of 2.5 bar absolute (this will limit torque to about 400 N.m or less).
Two ultra long distance challenges took place at this time. The Peking-Paris of 1907 was not officially a competition, but a "raid", the French term for an expedition or collective endeavour whose promoters, the newspaper "Le Matin", rather optimistically expected participants to help each other; it was 'won' by Prince Scipione Borghese, Luigi Barzini, and Ettore Guizzardi in an Itala. The New York–Paris of the following year, which went via Japan and Siberia, was won by George Schuster and others in a Thomas Flyer. Each event attracted only a handful of adventurous souls, but in both cases the successful drivers exhibited characteristics modern rally drivers would recognise: meticulous preparation, mechanical skill, resourcefulness, perseverance and a certain single-minded ruthlessness. The New York–Seattle race of 1909, if shorter, was no easier. Rather gentler (and more akin to modern rallying) was the Glidden Tour, run by the American Automobile Association between 1902 and 1913, which had timed legs between control points and a marking system to determine the winners.