the real championship. For that race, it was possible to use the 935's well-tested original engine setup. The main battle was between the sportscars, with a Renault Alpine setting the pole. The 935 driven by Stommelen and Schurti qualified third and, despite the weight and drag of a Group 5 silhouette, finished fourth overall, with one of the Porsche 936s taking the win. At Zeltweg, Ickx was back, setting the pole, but the throttle link broke before mid-race. Derek Bell set the fastest lap in the Kremer 935, but nonetheless two BMW coupés won ahead of a private 934. Porsche still had a narrow lead in the points standings, but only the best five of the seven events would count. BMW had now three wins compared to Porsche's two, which meant that Porsche had to win the final two races. The new engine setup was tested at Weissach in a modified 934 while the race cars were shipped overseas. At Watkins Glen, the regular race chassis 002 of Mass and Ickx needed modification to the brakes derived from the brakes of the 917, and the test chassis 001 of Stommelen and Schurti won, with the best BMW being fourth. Porsche now had three wins and two seconds equaling ninety points, which meant that only another win could add five more points to their tally. BMW had also three wins, but only one second and a fourth, equaling 85 points. Without a competitive third brand, the winner of the final round would take the world championship. In Dijon, the turbo of BMW Motorsport was back, now with the 3.5 L CSL, and this time the fast Swedes Peterson and Nilsson put it on the pole, half a second ahead of Ickx. Again the transmission was not as strong as the Bavarian Motor Works 750 hp engine, failing before the first of the six hours had passed. Three 935s plus two Group 5 spec 934/5s won ahead of the best normally aspirated BMW. The 935 and 936 had each won its championship, and Le Mans, too. The age of turbocharged engines had begun in endurance racing. 935/77 935/77A customer Based on the 1976 version, thirteen Porsche 935/77A were sold to privateer teams in Australia, Italy, France, the US and Germany. Among others, Cologne-based rivals Georg Loos and Kremer Racing entered 935s in the 1977 Deutsche Rennsport Meisterschaft which introduced the Group 5