| Chief Designer | John Barnard |
| Assistant Designer | Gordon Kimball |
| Designed In | 1984 |
| Significance of Name | McLaren Project 4, 2nd design (revision B) |
| Active Years | 1985 |
| Cars Entered | 32 |
| Races Contested | 16 |
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| Average Classification | Median: 2.5, Mean: 2.62 (Standard deviation: 1.69) |
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| Average Qualifying Position | Median: 6, Mean: 8.16 (Standard deviation: 5.78) |
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| Fastest Laps | 6 |
| Average Fastest Lap Position | Median: 3.5, Mean: 4.97 (Standard deviation: 3.87) |
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| Races Led | 10 |
| Laps Led | 231 |
| Race Distance Led | 1089 km |
| Debut | 1985 Brazilian GP |
| Maiden Win | 1985 Brazilian GP |
| Last Race | 1985 Australian GP |
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