1972 McLaren M21 vs. 2007 Mercedes-Benz SLK
To start off, 2007 Mercedes-Benz SLK is newer by 35 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 5,439 cc (8 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SLK (355 HP @ 6000 RPM) has 88 more horse power than 1972 McLaren M21. (267 HP @ 10000 RPM) In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 1972 McLaren M21. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SLK weights approximately 775 kg more than 1972 McLaren M21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1972 McLaren M21 | 2007 Mercedes-Benz SLK | |
| Make | McLaren | Mercedes-Benz |
| Model | M21 | SLK |
| Year Released | 1972 | 2007 |
| Engine Size | 1897 cc | 5439 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 267 HP | 355 HP |
| Engine RPM | 10000 RPM | 6000 RPM |
| Fuel Type | Gasoline | Diesel |
| Vehicle Weight | 465 kg | 1240 kg |
