The Youngtimer - Trophy is a racing series battled with racing cars homologated during 1966 to 1988 periode. The racing cars have to be prepared visually and technically conform to international motorsport rules valid at this period (FISA/FIA).

Marcus participated at Youngtimer-racing events at GP-Circuit Nuerburgring,
Motorsport Arena Oschersleben and at
GP-Circuit Hockenheimring in Germany.

Marcus racing car for the Youngtimer Trophy was
an Opel Kadett C Coupe and nearly on the same technical level as the Opel factory racing car (with 8 valved system) driven by Walter Röhrl and Manfred Trint during 1976/77 periode.