2008 Chevrolet HHR vs. 1972 McLaren M21
To start off, 2008 Chevrolet HHR is newer by 36 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 2,401 cc (4 cylinders), 2008 Chevrolet HHR is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 111 more horse power than 2008 Chevrolet HHR. (172 HP @ 5800 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 2008 Chevrolet HHR. With that said, vehicle weight also plays an important factor in acceleration. 2008 Chevrolet HHR weights approximately 1005 kg more than 1972 McLaren M21.
Compare all specifications:
| 2008 Chevrolet HHR | 1972 McLaren M21 | |
| Make | Chevrolet | McLaren |
| Model | HHR | M21 |
| Year Released | 2008 | 1972 |
| Engine Size | 2401 cc | 1927 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 172 HP | 283 HP |
| Engine RPM | 5800 RPM | 9000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 1470 kg | 465 kg |
