In 1985 the ETCC, of which the Spa 24 Hours were the highlight, was dominated by the fast Volvo 240 and Rover Vitesse. For the race in the Ardennes BMW was confident its legendary reliability could erase their speed deficit. And so it did. By Sunday morning all Rovers had fallen by the wayside, and the leading Volvo was only in third, after gearbox problems.
The BMW Schnitzer Team took a double win, with their 635 CSi in the legendary Genuine BMW Parts livery. The winning #5 car was driven by Roberto Ravaglia and two F1-drivers, Gerhard Berger and Marc Surer.