William Thomas Lacy
Born William Thomas Sadvar
Birthplace: Tyler, Texas
Born: July 21, 1919
Died: June 6, 2011
Bill Lacy
William Thomas Lacy
Born William Thomas Sadvar
Birthplace: Tyler, Texas
Born: July 21, 1919
Died: June 6, 2011
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Pikes Peak | Non | points | races | only |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Unknown | Non | points | races | only |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Buick | Non | points | race | only | |||||
| Unknown | Non | points | races | only |