What Swiss racing driver won the 1971 Race of Champions? 
1971 Race of Champions:  The race was run over 50 laps of the circuit, and was won by Clay Regazzoni in a Ferrari 312B2. Clay Regazzoni: Gianclaudio Giuseppe Regazzoni (5 September 1939 – 15 December 2006), commonly called "Clay", was a Swiss racing driver.
i don't know