Regulations imposed by last minute series promoter Bernie Ecclestone dictated that for teams to receive official points and prize money they must have paid the US$60,000 registration fee.
Among those who did commit to the championship were the Ford Europe backed Eggenberger Motorsport with their Texaco sponsored Ford Sierra turbo's, Andy Rouse's team who ran their own Ford Sierra Cosworth, the factory backed BMW teams of West Germany's Schnitzer Motorsport and the Italian CiBiEmme and Bigazzi teams racing the new BMW M3 which had replaced the old 635 CSi as BMW's main challenger, and the Alfa Corse team with their factory Alfa Romeo 75 turbo's.
Although numerous other entries competed in races during the season only the following were eligible to score championship points.
Point system: 20-15-12-10-8-6-4-3-2-1 awarded to the top ten finishers for both outright and divisional results.
Point system: 20-15-12-10-8-6-4-3-2-1 awarded to the top ten finishers for both outright and divisional results.