1976 Alfa Romeo Alfetta vs. 1972 McLaren M21
To start off, 1976 Alfa Romeo Alfetta is newer by 4 year(s). Which means there will be less support and parts availability for 1972 McLaren M21. In addition, the cost of maintenance, including insurance, on 1972 McLaren M21 would be higher. At 1,962 cc (4 cylinders), 1976 Alfa Romeo Alfetta is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 142 more horse power than 1976 Alfa Romeo Alfetta. (125 HP @ 5300 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1976 Alfa Romeo Alfetta. With that said, vehicle weight also plays an important factor in acceleration. 1976 Alfa Romeo Alfetta weights approximately 615 kg more than 1972 McLaren M21.
Compare all specifications:
| 1976 Alfa Romeo Alfetta | 1972 McLaren M21 | |
| Make | Alfa Romeo | McLaren |
| Model | Alfetta | M21 |
| Year Released | 1976 | 1972 |
| Engine Size | 1962 cc | 1897 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 125 HP | 267 HP |
| Engine RPM | 5300 RPM | 10000 RPM |
| Vehicle Weight | 1080 kg | 465 kg |
