1966 Alfa Romeo 2600 vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 6 year(s). Which means there will be less support and parts availability for 1966 Alfa Romeo 2600. In addition, the cost of maintenance, including insurance, on 1966 Alfa Romeo 2600 would be higher. At 2,584 cc (6 cylinders), 1966 Alfa Romeo 2600 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 120 more horse power than 1966 Alfa Romeo 2600. (163 HP @ 5900 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1966 Alfa Romeo 2600. With that said, vehicle weight also plays an important factor in acceleration. 1966 Alfa Romeo 2600 weights approximately 651 kg more than 1972 McLaren M21.
Compare all specifications:
| 1966 Alfa Romeo 2600 | 1972 McLaren M21 | |
| Make | Alfa Romeo | McLaren |
| Model | 2600 | M21 |
| Year Released | 1966 | 1972 |
| Engine Size | 2584 cc | 1927 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 163 HP | 283 HP |
| Engine RPM | 5900 RPM | 9000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1116 kg | 465 kg |
