The Audi Quattro is a Rally Giant.
It was the first to combine four-wheel-drive, and a turbocharged engine. It was the first to run with more than 300bhp. And, because it was re-homologated from Group 4 into Group B in 1983, it was also the first successful Group B car.
The Quattro dominated rallying from the start of 1981 until late 1984, winning 23 World Rallies, the manufacturer's championship in 1982 and 1984, and the driver's crown for Hannu Mikkola and Stig Blomqvist.
This is the full story of the car which dominated the World and European rally scene in the first half of the 1980s.