Karl Busson1968 USAC Champ Car Series DNQs or WDs Click on the Race Number to see the complete results for that race. |
| Race | Site | Position | # | Sponsor / Owner | Car |
|---|---|---|---|---|---|
| 1968-21 | DuQuoin | – | 108 | Cavanaugh | – |
| 1968-22 | Indianapolis | – | 108 | Cavanaugh | – |
| 1968-25 | Michigan | – | 88 | Kenny Brenn | – |
| 1968-27 | Phoenix | – | 108 | Cavnaugh Kurtis F.E. | Chevrolet |