The William M Yahr team took part in AAA National Motor Car Championship from 1931 to 1935.
During her performances it won 0 victories
and 0 pole positions.
5 pilots competed
in 15 races in
6 different cars.
| Driver | Best Race Position | Best position in qualification | Total Races |
|---|---|---|---|
| Sam Ross | 2 | 5 | 10 |
| Kelly Petillo | 6 | 10 | 2 |
| Sam Hoffman | 19 | 25 | 1 |
| Sam Palmer | 8 | 10 | 1 |
| George Barringer | 2 | 6 | 2 |
| Track | Best Race Position | Best position in qualification | Total Races |
|---|---|---|---|
| Indianapolis | 15 | 25 | 2 |
| Altoona | 8 | 8 | 4 |
| Syracuse | 2 | 6 | 3 |
| Michigan Fairgrounds | 5 | 8 | 4 |
| Roby | 5 | 5 | 1 |
| Springfield | 2 | 6 | 1 |
| Year | Winner | Grand Prix |
|---|
Miller SC
Miller
Miller
Miller
Miller
Miller