
Zwarte Shadow DN9 Testwagen
Despite the fact that Jan and Elio are far from satisfied with the Shadow and their results, both are invited by Colin Chapman to join Lotus in 1979 winter testing at Paul Ricard. De Angelis is prepared to bring a huge amount of funds to the 1978 World Champion team. Jan does not await Chapman's decision and signs a deal with German team ATS

Martini Lotus 79
Jan heeft dus ook in de Brabham getest:
For 1981 Nelson Piquet wants Jan to be his team mate at Brabham. Team principal Bernie Ecclestone invites him over for a test but has already secretly chosen to go for Hector Rebaque's millions. Jan, without a sponsor, returns to ATS and shines at Kyalami.