2009 Hummer H2 vs. 1955 Rover P4
To start off, 2009 Hummer H2 is newer by 54 year(s). Which means there will be less support and parts availability for 1955 Rover P4. In addition, the cost of maintenance, including insurance, on 1955 Rover P4 would be higher. At 6,162 cc (8 cylinders), 2009 Hummer H2 is equipped with a bigger engine. In terms of performance, 2009 Hummer H2 (388 HP @ 5700 RPM) has 314 more horse power than 1955 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 2009 Hummer H2 should accelerate faster than 1955 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H2 weights approximately 1460 kg more than 1955 Rover P4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 1955 Rover P4. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H2 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Hummer H2 (415 Nm) has 265 more torque (in Nm) than 1955 Rover P4. (150 Nm). This means 2009 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 1955 Rover P4.
Compare all specifications:
| 2009 Hummer H2 | 1955 Rover P4 | |
| Make | Hummer | Rover |
| Model | H2 | P4 |
| Year Released | 2009 | 1955 |
| Engine Position | Front | Front |
| Engine Size | 6162 cc | 2102 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 388 HP | 74 HP |
| Engine RPM | 5700 RPM | 4200 RPM |
| Torque | 415 Nm | 150 Nm |
| Engine Compression Ratio | 10.5:1 | 7.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2850 kg | 1390 kg |
| Vehicle Length | 4830 mm | 4590 mm |
| Vehicle Width | 2070 mm | 1670 mm |
| Vehicle Height | 2080 mm | 1620 mm |
| Wheelbase Size | 3130 mm | 2830 mm |
| Fuel Tank Capacity | 121 L | 52 L |
