ATS HS1

[2][3] After running a Penske PC4 for 1977, ATS built their own car for 1978 with German Jochen Mass and Frenchman Jean-Pierre Jarier as their drivers.

At the United States West, The German retired with brake failure and the Frenchmen finished 11th but the Monaco Grand Prix saw both drivers failed to qualify.

Jarier left ATS after Monaco as he wanted to focus on Formula 2 and Can-Am to rebuild his career and was replaced by Italian Alberto Colombo for Belgium but he failed to qualify and Mass finished 11th, Spanish Grand Prix saw the Italian failed to qualify and the German finish ninth.

[9] In Italy, Mass injured his knee during practice and was out for the rest of the season, he was replaced by Austrian Harald Ertl, who was eliminated in the pre-qualifying session in his Ensign but both cars failed to qualify.

Bleekemolen remained for the final two races, he retired from the United States with an Oil Leak and then failed to qualify for Canada.