Cars have come a long way since 1911 and the first Indianapolis 500 when Ray Harroun won the race in his yellow No. 32 Marmon Wasp. In that race, Harroun averaged 74.602 mph. That may seem ridiculously slow until you consider that Ralph Mulford won the race the next year with an average speed of 56.29 mph.In 2021, Brazilian Hélio Castroneves won the race with an average speed of 190.690 mph. That’s