By now Mass had also left following a broken leg in testing. As Harald Ertl had failed to pre-qualify his Ensign for the 1978 Italian Grand Prix, he was given another chance with the first ATS. Ertl didn't qualify for the race, and Rosberg returned for the final two races. The lack of continuity both in the cars and in the garage had been no help to the fledgling team, despite the introduction of the new D1 chassis. The D1 was designed by John Gentry, and featured skirts, wider track and side pods.