Background
One of the most influential automotive designs of the last 50 years, the Audi Quattro arguably did more than any other car to bring four-wheel drive into the motoring mainstream.
Introduced in 1980, the Quattro was based on the outwardly similar Coupé's bodyshell but used a different floor-pan to accommodate its four-wheel-drive transmission and independent rear suspension. The engine was a development of the five-cylinder, 2.1-litre, single-overhead-camshaft unit first seen in the 200 saloon.
Equipped with a KKK turbocharger, it produced 200bhp in road trim with considerably more being available in competition tune.
Phenomenally fast and sure-footed on the road, the Quattro excelled in international rallying, winning the Manufacturers' Championship for Audi in 1982 and 1984 and the Driver's Championship in '83 and '84, but its enduring legacy would be the demonstration of four-wheel drive's advantages for passenger cars.
Since those early days, Audi has gone on to apply the quattro 4WD system to many other models but only the original (or 'Ur') version is spelled with a capital 'Q'.
There were numerous detail improvements made during the first few years of production, one of the most significant being the adoption of anti-lock brakes as standard in 1983 and then, for 1987, the Quattro received a larger engine of 2,226cc capacity.
A Torsen centre differential was adopted at the same time, enabling power to be split front/rear 25%/75% or vice versa.
In 1989 a more powerful twin-cam 20-valve engine was standardised and in this form the Quattro would continue for another two years.
Although the Quattro had been intended as a 400-unit homologation special, almost 11,500 had been sold by the time production ceased in 1991.