| Chief Designer | John Barnard |
| Assistant Designer | Gordon Kimball |
| Designed In | 1984 |
| Significance of Name | McLaren Project 4, 2nd design |
| Active Years | 1984 |
| Cars Entered | 32 |
| Races Contested | 16 |
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| Average Classification | Median: 1, Mean: 1.90 (Standard deviation: 1.48) |
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| Average Qualifying Position | Median: 5, Mean: 5.34 (Standard deviation: 3.65) |
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| Fastest Laps | 8 |
| Average Fastest Lap Position | Median: 3, Mean: 4.19 (Standard deviation: 3.82) |
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| Races Led | 15 |
| Laps Led | 513 |
| Race Distance Led | 2324 km |
| Debut | 1984 Brazilian GP |
| Maiden Win | 1984 Brazilian GP |
| Last Race | 1984 Portuguese GP |
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