1979 Alfa Romeo Alfetta vs. 1972 McLaren M21
To start off, 1979 Alfa Romeo Alfetta is newer by 7 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 1,995 cc (4 cylinders), 1979 Alfa Romeo Alfetta is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 203 more horse power than 1979 Alfa Romeo Alfetta. (80 HP @ 4300 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1979 Alfa Romeo Alfetta. With that said, vehicle weight also plays an important factor in acceleration. 1979 Alfa Romeo Alfetta weights approximately 785 kg more than 1972 McLaren M21.
Compare all specifications:
| 1979 Alfa Romeo Alfetta | 1972 McLaren M21 | |
| Make | Alfa Romeo | McLaren |
| Model | Alfetta | M21 |
| Year Released | 1979 | 1972 |
| Engine Size | 1995 cc | 1927 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 80 HP | 283 HP |
| Engine RPM | 4300 RPM | 9000 RPM |
| Vehicle Weight | 1250 kg | 465 kg |
