Peter Studer (front) drives his 1962 Lotus 24 Formula One race car ahead of Georg Kaufmann (L) on a 1958 Maserati 250 F through a steep turn during the Indianapolis in Oerlikon race demonstration at the Offene Rennbahn cycling track in Zurich's Oerlikon suburb July 23, 2013. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT MOTORSPORT SOCIETY)