Bobby Unser CART/Champ Car results at Michigan
| Year | Race # | Start | Finish | Car # | Sponsor | Chassis | Engine | Tire | Owner | Qualifying Speed | Laps | X Led | Laps Led | Status | Points |
| 1979 | 7 | 1 | 19 | 12 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 203.879 | 21 | 1 | 8 | engine | 5 |
| 1979 | 8 | 18 | 1 | 12 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | | 63 | 1 | 36 | flagged | 250 |
| 1979 | 12 | 1 | 1 | 12 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 204.001 | 75 | 2 | 49 | flagged | 300 |
| 1980 | 6 | 1 | 2 | 11 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 192.488 | 100 | 3 | 29 | flagged | 320 |
| 1980 | 10 | 2 | 2 | 11 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 195.185 | 75 | 3 | 9 | flagged | 240 |
| 1981 | 5 | 9 | 16 | 3 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 194.731 | 162 | 0 | 0 | engine | 5 |
| 1981 | 8 | 2 | 7 | 3 | Norton Spirit | Penske | Cosworth | Goodyear | Penske | 199.264 | 74 | 0 | 0 | flagged | 6 |
