2009 Hummer H2 vs. 1947 Rover P2
To start off, 2009 Hummer H2 is newer by 62 year(s). Which means there will be less support and parts availability for 1947 Rover P2. In addition, the cost of maintenance, including insurance, on 1947 Rover P2 would be higher. At 6,199 cc (8 cylinders), 2009 Hummer H2 is equipped with a bigger engine. In terms of performance, 2009 Hummer H2 (393 HP @ 5700 RPM) has 346 more horse power than 1947 Rover P2. (47 HP @ 4600 RPM). In normal driving conditions, 2009 Hummer H2 should accelerate faster than 1947 Rover P2. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H2 weights approximately 1428 kg more than 1947 Rover P2. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 2009 Hummer H2 | 1947 Rover P2 | |
| Make | Hummer | Rover |
| Model | H2 | P2 |
| Year Released | 2009 | 1947 |
| Engine Size | 6199 cc | 1577 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 393 HP | 47 HP |
| Engine RPM | 5700 RPM | 4600 RPM |
| Vehicle Weight | 2850 kg | 1422 kg |
