He failed to score any championship points during his sporadic six year career .
Schuppan participated in 13 Formula One World Championship Grands Prix , mostly for Ensign and Surtees , making his debut on May 12 , 1974 .
Schuppan failed to score any championship points during Schuppan 's sporadic six year career .
Schuppan participated in 13 Formula One World Championship Grands Prix , mostly for Ensign and Surtees , making his debut on May 12 , 1974 .