In 1957, at 18, Al Unser Sr. began his racing career, initially competing primarily in modified roadsters, sprint cars and midgets. His first Indy 500 start came in 1965, and he finished ninth.

and Al Unser, Sr. right next to him in a similar car. The most bizarre car in the group had to be the 1960 Milliken MX1 Camber Car. Driven by its 90-something designer and namesake, William ...