- Johnstown brothers entered entered five cars in the world renown Indianapolis 500 from 1951 through 1955
- Two of the Leitenberger cars qualified for the Indianapolis 500.
- Driver Andy Linden finished in fourth place at Indy in 1951.
- Driver George Fonder finished 15th at Indy in 1952
- Three other Leitenberger cars didn’t advance past the qualifying sessions at Indy.