1972 McLaren M21 vs. 1999 Mercedes-Benz SLK
To start off, 1999 Mercedes-Benz SLK is newer by 27 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 1,998 cc (4 cylinders), 1999 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (267 HP @ 10000 RPM) has 133 more horse power than 1999 Mercedes-Benz SLK. (134 HP @ 5500 RPM). In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1999 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz SLK weights approximately 805 kg more than 1972 McLaren M21.
Compare all specifications:
| 1972 McLaren M21 | 1999 Mercedes-Benz SLK | |
| Make | McLaren | Mercedes-Benz |
| Model | M21 | SLK |
| Year Released | 1972 | 1999 |
| Engine Size | 1897 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 267 HP | 134 HP |
| Engine RPM | 10000 RPM | 5500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 465 kg | 1270 kg |
