The PC - 20 was powered by an Ilmor - Chevrolet V8 265A turbo engine .
PC - 20 debuted at the 1991 Gold Coast IndyCar Grand Prix where PC - 20 qualified 6th and 7th with Fittipaldi and Mears , respectively .
The PC - 20 was powered by an Ilmor - Chevrolet V8 265A turbo engine and it debuted at the 1991 Gold Coast IndyCar Grand Prix where it qualified 6th and 7th with Fittipaldi and Mears , respectively .