ヨッヘン・マス
For a few races in 1978, Ertl entered with Ensign, but things were even worse there, with the cars failing to finish or even worst, when he did not survive prequalifying at Monza. At the same event, he got another chance with the spare car of German-language ATS team, as regular driver Jochen Mass injured himself in the pre-Monza test a few days prior. He still failed to make the cut.