| « Cooper T43 (F2) | Cars / 1957 / Dunn | Epperly Indy Roadster » | |
| 1958 » |
| Built by: | Dunn |
| Active years: | 1957 – 1960 (4) |
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| Rd | Date | Grand Prix | Driver | Team | Engine | Grid | Race | Pts |
| 1 | 13 Jan | Argentina | ||||||
| 2 | 19 May | Monaco | ||||||
| 3 | 30 May | Indy 500 | Al Herman | Dunn Engineering | Offenhauser | 30 | Ret | 0 |
| 4 | 7 Jul | France | ||||||
| 5 | 20 Jul | Great Britain | ||||||
| 6 | 4 Aug | Germany | ||||||
| 7 | 18 Aug | Pescara | ||||||
| 8 | 8 Sep | Italy |