God bless FIA R-GT. It's a class for rallying designed to get GT racers homologated for rally competition. One of the nuttiest products of R-GT is this, the V-8 Vantage rally car. A group of Finnish tuners built a rally car out of a V-8 Vantage race car and it's spectacular. Where you'd normally expect an Aston to cruise around Monaco, this one is on tiny snow tires getting sideways. God bless FIA R-GT.
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).
However, if you are heading for a spin around your favourite backcountry twister, then there are few cars better suited. Independent suspension all-round, a turbocharged 230hp 2.0-litre engine and all-wheel drive, mixed with the early signs of Ford’s newfound commitment to handling, meant the Cosworth would devour pretty much any flavour of road in its path.
Between 1997 and 2010, the regulations mandated that World Rally Cars must have been built upon a production car with a minimum production run of 2500 units. A number of modifications could be made including increasing the engine displacement up to 2.0L, forced induction (including an anti-lag system), addition of four wheel drive, fitment of a sequential gearbox, modified suspension layout and attachment points, aerodynamic body modifications, weight reduction to a minimum of 1230 kg and chassis strengthening for greater rigidity. The maximum width was set at 1770 mm while front and rear tracks shouldn't exceed 1550 mm.
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.