1949 Alfa Romeo 6C vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 23 year(s). Which means there will be less support and parts availability for 1949 Alfa Romeo 6C. In addition, the cost of maintenance, including insurance, on 1949 Alfa Romeo 6C would be higher. At 2,443 cc (6 cylinders), 1949 Alfa Romeo 6C is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 178 more horse power than 1949 Alfa Romeo 6C. (89 HP @ 4600 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1949 Alfa Romeo 6C. With that said, vehicle weight also plays an important factor in acceleration. 1949 Alfa Romeo 6C weights approximately 1085 kg more than 1972 McLaren M21.
Compare all specifications:
| 1949 Alfa Romeo 6C | 1972 McLaren M21 | |
| Make | Alfa Romeo | McLaren |
| Model | 6C | M21 |
| Year Released | 1949 | 1972 |
| Engine Size | 2443 cc | 1897 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 89 HP | 267 HP |
| Engine RPM | 4600 RPM | 10000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1550 kg | 465 kg |
