| Adams ??? |  | Offenhauser L4 |
| Alfa Romeo 158 |  | Alfa Romeo 158 L8 c |
| Alfa Romeo 8C-308 |  | Alfa Romeo 158 L8 c |
| Alta GP |  | Alta L4 c |
| Bardazon ??? | | Offenhauser L4 |
| Bromme ??? |  | Offenhauser L4 |
| Cantarano Cannonball |  | Wayne L6 |
| Cooper T12 |  | JAP V2 |
| Deidt Tuffanelli Derrico |  | Offenhauser L4
@Sparks L6 c |
| ERA A |  | ERA L6 c |
| ERA B |  | ERA L6 c |
| ERA B/C |  | ERA L6 c |
| ERA D | | ERA L6 c |
| ERA E |  | ERA L6 c |
| Ewing ??? |  | Offenhauser L4 |
| Ferrari 125 |  | Ferrari 125 V12 c |
| Ferrari 166 |  | Ferrari 125 V12 |
| Ferrari 166S |  | Jaguar XK L6 |
| Ferrari 275 |  | Ferrari 275 V12 |
| Ferrari 375 |  | Ferrari 375 V12 |
| Gdula ??? | | Offenhauser L4 |
| Kupiec ??? | | Offenhauser L4 |
| Kurtis Kraft 1000 |  | Offenhauser L4 |
| Kurtis Kraft 2000 |  | Offenhauser L4 |
| Kurtis Kraft 3000 |  | Cummins L6 c
@Offenhauser L4
@Offenhauser L4 c |
| Kurtis Kraft ??? |  | Duray L4 c
@Novi L8 c
@Offenhauser L4
@Offenhauser L4 c
@Sparks L6 c |
| Langley ??? |  | Offenhauser L4 |
| Lesovsky ? |  | Offenhauser L4 |
| Marchese ??? |  | Offenhauser L4 |
| Maserati 4CL |  | Maserati 4CLT L4 c |
| Maserati 4CLT/48 |  | Maserati 4CLT L4 c |
| Maserati 8CTF |  | Maserati L8 c
@Offenhauser L4
@Offenhauser L4 c |
| Maserati Milano 4CLT/50 |  | Maserati 4CLT L4 c |
| Meyer ??? |  | Offenhauser L4 |
| Miller ??? |  | Offenhauser L4 |
| Miller RE4D |  | Miller L6 c |
| Moore ??? |  | Offenhauser L4 |
| Nichels ??? |  | Offenhauser L4 |
| Olson Special |  | Offenhauser L4 |
| R Miller ??? |  | R Miller ??? |
| Rae ??? |  | Offenhauser L4 c |
| Rounds Rocket Special |  | Offenhauser L4 |
| Scopa ??? |  | Offenhauser L4 |
| Simca Gordini T15 |  | Gordini 15C L4 c |
| Snowberger ??? |  | Offenhauser L4 |
| Stevens ??? |  | Offenhauser L4
@Offenhauser L4 c |
| SVA 1500 |  | FIAT L4 c |
| Talbot Lago T26C |  | Talbot 23CV L6 |
| Talbot Lago T26C-DA |  | Talbot 23CV L6 |
| Talbot Lago T26C-GS |  | Talbot 23CV L6 |
| Talbot-Darracq 700 |  | Talbot 700 L8 s |
| Watson Indy Roadster |  | Offenhauser L4 |
| Weidel ??? |  | Mercury V8 |
| Wetteroth ??? |  | Offenhauser L4 |