1954 Allard K3 vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 18 year(s). Which means there will be less support and parts availability for 1954 Allard K3. In addition, the cost of maintenance, including insurance, on 1954 Allard K3 would be higher. At 3,621 cc (8 cylinders), 1954 Allard K3 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 189 more horse power than 1954 Allard K3. (94 HP @ 3800 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1954 Allard K3. With that said, vehicle weight also plays an important factor in acceleration. 1954 Allard K3 weights approximately 715 kg more than 1972 McLaren M21.
Compare all specifications:
| 1954 Allard K3 | 1972 McLaren M21 | |
| Make | Allard | McLaren |
| Model | K3 | M21 |
| Year Released | 1954 | 1972 |
| Engine Size | 3621 cc | 1927 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 94 HP | 283 HP |
| Engine RPM | 3800 RPM | 9000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1180 kg | 465 kg |
