VIDEO // AUDI SPORT QUATTRO S1 @ 'GRAND PRIX ON GRAVEL'

In 1984, Audi unveiled what was to be the last incarnation of their Group B entry, the Sport Quattro S1. Powered by a turbocharged 2,110cc in-line five cylinder producing what was said to be in excess of 500bhp, the Sport Quattrro S1, which weighed in at just 2,403lbs, is considered by many to be the most powerful rally car, ever.

In this gerat bit of video, watch as Stig Blomqvist and Hannu Mikkola pilot the S1 in the legendary Gradn Prix on Gravel, the 1000 Lakes Rally in Central Finland... [read more]