The Complete History of Grand Prix Motor Racing,1990. Grand Prix V6 Turbo : r/Pontiac,1990 Pontiac Grand Prix STE Sports Sedan 3.1 L V6 5-speed (100.5 kW / 137 PS / 135 hp) (since September 1989 for North America ) specs review,1990-96 Pontiac Grand Prix | Consumer Guide Auto,1990-96 Pontiac Grand Prix | Consumer Guide Auto