| Nationality | Engine | % Correct |
|---|---|---|
| ITA | Ferrari | 99%
|
| GER | Mercedes | 97%
|
| JPN | Honda | 96%
|
| FRA | Renault | 93%
|
| USA | Ford | 81%
|
| GER | BMW | 59%
|
| ITA | Alfa Romeo | 55%
|
| GER | Porsche | 51%
|
| ITA | Maserati | 42%
|
| GBR | BRM | 24%
|
| LUX | TAG | 24%
|
| GBR | Coventry Climax | 20%
|
| FRA | Matra | 20%
|
| GBR | Vanwall | 19%
|
| JPN | Mugen Honda | 13%
|
| AUS | Repco | 13%
|
| USA | Offenhauser | 4%
|
| GBR | Waslake | 1%
|