1972 McLaren M21 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 39 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 3,600 cc (6 cylinders), 2011 Porsche 911 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (345 HP @ 6500 RPM) has 78 more horse power than 1972 McLaren M21. (267 HP @ 10000 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 1972 McLaren M21. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 924 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 | 2011 Porsche 911 | |
| Make | McLaren | Porsche |
| Model | M21 | 911 |
| Year Released | 1972 | 2011 |
| Engine Size | 1897 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 267 HP | 345 HP |
| Engine RPM | 10000 RPM | 6500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 465 kg | 1389 kg |
