1967 Alfa Romeo Spider vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 5 year(s). Which means there will be less support and parts availability for 1967 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1967 Alfa Romeo Spider would be higher. At 2,582 cc (6 cylinders), 1967 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 120 more horse power than 1967 Alfa Romeo Spider. (163 HP @ 5900 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1967 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 1967 Alfa Romeo Spider weights approximately 865 kg more than 1972 McLaren M21.
Compare all specifications:
| 1967 Alfa Romeo Spider | 1972 McLaren M21 | |
| Make | Alfa Romeo | McLaren |
| Model | Spider | M21 |
| Year Released | 1967 | 1972 |
| Engine Size | 2582 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 | 1330 kg | 465 kg |
