First launch in 1986, Ford Sierra's production format was available in rear wheel drive configuration only. By 1992 it already evolved into four wheel drive with turbo engine developing up to 340 Hp.
Racing versions of the Cosworth were highly successful in European and World touring car racing throughout the late 1980s and early 1990s', and the RS500 helped Ford to win the manufacturer's title in the 1987 World Touring Car Championship (Nowadays Ford RS-500 Cosworth is one of the most sought after high performance cars due to its powerful engine as well as winning many championship's titles, a race driven RS-500 may fetch a commanding high price. A rare collector car indeed!). This classic rare car also won the 1988 Rally Championship for Ford as Didier Auriol winning his first World Championship rally in Corsica.
In 1987, a 224 bhp (167 kW) Sierra Cosworth, the RS500, was sold alongside the 204 hp (152 kW) road going version. Only 500 were produced as the minimum number of road-going cars required to meet with newly introduced homologation racing rules, allowing it to compete in evolution form for group A racing. The car was modified by the Tickford Engineering Company in conjunction with Ford.
Revisions included uprated brakes and larger brake cooling ducts and modified front and rear spoilers (a second smaller rear spoiler was added beneath the large "whale-tail"), a modified front bumper to allow extra cooling for a larger intercooler, as well as various engine upgrades including a larger turbocharger and a second fuel rail (which did not operate on road models). Race outputs were as high as 550 bhp (410 kW/558 PS), in which the Sierra dominated group A series around the world.
Performance of 224 bhp : 0-60 mph 6.2 see ; speed : 153 mph
Sources; wikipedia and RS-500 club UK
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