the next three races, scoring another fifth in the British GP. However, Donohue crashed the car in the final practice session of the 1975 Austrian Grand Prix at Spielberg and later died from his injuries. Penske missed the Italian race, returning only for the US GP, abandoning the March 751 in favor of the PC1 with Northern Irish driver John Watson. For 1976, Penske signed a sponsorship deal with Citibank and entered a brand new PC3 for Watson. Despite a fifth-place score at the South African Grand Prix at Kyalami, the PC3 was evolved into the PC4, which was much more competitive, allowing Watson to score two podiums in France and Britain. Then, in the Austrian Grand Prix, the team scored their only F1 win. So far this has been the last time an American constructor won an F1 race. Still, at the end of the year, Penske decided to withdraw from the sport to concentrate solely on Indycar racing, selling the remains of his European operations to Günter Schmid of Germany. For 1977, the car was entered by Schmidt's ATS Wheels business and run under the name of ATS Racing Team. The ATS-Penske PC4, now painted yellow, debuted in the 1977 United States Grand Prix West with Jean-Pierre Jarier at the wheel, where the Frenchman scored the team's single point of the season. A second PC4 was eventually entered for Hans Heyer (who started the 1977 German Grand Prix despite failing to qualify) and Hans Binder (3 races) but the team's fortunes sank and Schmidt quit after the Italian GP, before returning in 1978 with his chassis. A third PC4 was built by Penske for Interscope Racing, who entered the car in the United States and Canadian Grands Prix, driven by American Danny Ongais with no results. In 1979 Penske designed and built the HR100 for wealthy Mexican 'gentleman driver' Héctor Rebaque. The car was entered for the final three races of the season, but either failed to qualify or to finish in each case. Supercars Championship In 2015, Team Penske entered the Australian V8 Supercars Championship, having purchased a 51% stake in Dick Johnson Racing in September 2014. The team was known as DJR Team Penske. The team raced a single Ford Falcon FG X in 2015, initially with Marcos Ambrose driving car No. 17 and Scott Pye as a co-driver in the Endurance Cup. Following the Australian