Ausfallquote: Motorenherstellerübersicht
Um die Statistik nicht zu verfälschen, muss ein Fahrer mindestens an fünf Rennen teilgenommen haben, um hier aufgelistet zu werden
| Pos. | Motorenhersteller | Nation | aktiv? | Ausfallquote | Rennteilnahmen |
|---|---|---|---|---|---|
| 1 | Ford |
 |
nein | 46,930% | 5487 |
| =1 | Scarab |
|
nein | 66,670% | 3 |
| =1 | Novi |
|
nein | 60% | 10 |
| =1 | Cummins |
|
nein | 100% | 2 |
| =1 | Offenhauser |
|
nein | 48,720% | 351 |
| =1 | TAG-Heuer |
|
nein | 29,960% | 257 |
| =1 | Petronas |
|
nein | 32% | 300 |
| =1 | Honda |
|
nein | 30,160% | 1280 |
| =1 | Mugen Honda |
|
nein | 40,550% | 291 |
| =1 | Toyota |
|
nein | 24,400% | 455 |
| =1 | Yamaha |
|
nein | 58,180% | 220 |
| =1 | Lamborghini |
|
nein | 51,940% | 206 |
| =1 | Osella |
|
nein | 70% | 10 |
| =1 | Milano |
|
nein | 66,670% | 3 |
| =1 | Ferrari |
|
ja | 25,690% | 3807 |
| =1 | Lancia |
|
nein | 70% | 10 |
| =1 | European |
|
nein | 51,520% | 33 |
| =1 | Castellotti |
|
nein | 50% | 4 |
| =1 | Motori Moderni |
|
nein | 87,840% | 74 |
| =1 | Fondmetal |
|
nein | 35,290% | 34 |
| =1 | Maserati |
|
nein | 51,530% | 491 |
| =1 | Speluzzi |
|
nein | 100% | 1 |
| =1 | A.T.S. |
|
nein | 83,330% | 12 |
| =1 | Alfa Romeo |
|
nein | 61,600% | 474 |
| =1 | OSCA |
|
nein | 70% | 10 |