1955 Kurtis 500D

Kurtis Kraft created 120 Indianapolis 500 cars, and by 1955, the Frank Kurtis-built cars had won four of the last five years at Indianapolis. Bob Sweikert's crew chief, A.J. Watson, offset the engine and driveline of the Kurtis design, improving weight distribution and allowing for faster cornering speeds. It was a change that would usher in a new front-runner at Indy, with five Watson automobiles winning the Indianapolis 500 from 1956-1964.