1958 Bristol 406 vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 14 year(s). Which means there will be less support and parts availability for 1958 Bristol 406. In addition, the cost of maintenance, including insurance, on 1958 Bristol 406 would be higher. At 2,216 cc (6 cylinders), 1958 Bristol 406 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 137 more horse power than 1958 Bristol 406. (130 HP @ 5750 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1958 Bristol 406. With that said, vehicle weight also plays an important factor in acceleration. 1958 Bristol 406 weights approximately 655 kg more than 1972 McLaren M21.
Compare all specifications:
| 1958 Bristol 406 | 1972 McLaren M21 | |
| Make | Bristol | McLaren |
| Model | 406 | M21 |
| Year Released | 1958 | 1972 |
| Engine Size | 2216 cc | 1897 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 130 HP | 267 HP |
| Engine RPM | 5750 RPM | 10000 RPM |
| Vehicle Weight | 1120 kg | 465 kg |
