2006 Hummer H3 vs. 1972 McLaren M21
To start off, 2006 Hummer H3 is newer by 34 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 3,457 cc (5 cylinders), 2006 Hummer H3 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 63 more horse power than 2006 Hummer H3. (220 HP @ 5600 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 2006 Hummer H3.
Compare all specifications:
| 2006 Hummer H3 | 1972 McLaren M21 | |
| Make | Hummer | McLaren |
| Model | H3 | M21 |
| Year Released | 2006 | 1972 |
| Engine Size | 3457 cc | 1927 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 220 HP | 283 HP |
| Engine RPM | 5600 RPM | 9000 RPM |
