2007 Chevrolet HHR vs. 1950 Rover P4
To start off, 2007 Chevrolet HHR is newer by 57 year(s). Which means there will be less support and parts availability for 1950 Rover P4. In addition, the cost of maintenance, including insurance, on 1950 Rover P4 would be higher. At 2,397 cc (4 cylinders), 2007 Chevrolet HHR is equipped with a bigger engine. In terms of performance, 2007 Chevrolet HHR (175 HP @ 6200 RPM) has 101 more horse power than 1950 Rover P4. (74 HP @ 4200 RPM). In normal driving conditions, 2007 Chevrolet HHR should accelerate faster than 1950 Rover P4.
Because 1950 Rover P4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1950 Rover P4. However, in wet, icy, snow, or gravel driving conditions, 2007 Chevrolet HHR, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Chevrolet HHR (224 Nm @ 5000 RPM) has 74 more torque (in Nm) than 1950 Rover P4. (150 Nm @ 2500 RPM). This means 2007 Chevrolet HHR will have an easier job in driving up hills or pulling heavy equipment than 1950 Rover P4.
Compare all specifications:
| 2007 Chevrolet HHR | 1950 Rover P4 | |
| Make | Chevrolet | Rover |
| Model | HHR | P4 |
| Year Released | 2007 | 1950 |
| Engine Position | Front | Front |
| Engine Size | 2397 cc | 2103 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 175 HP | 74 HP |
| Engine RPM | 6200 RPM | 4200 RPM |
| Torque | 224 Nm | 150 Nm |
| Torque RPM | 5000 RPM | 2500 RPM |
| Engine Bore Size | 87.9 mm | 65.2 mm |
| Engine Stroke Size | 97.8 mm | 105 mm |
| Engine Compression Ratio | 10.5:1 | 7.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Vehicle Length | 4440 mm | 4530 mm |
| Vehicle Width | 1740 mm | 1670 mm |
| Vehicle Height | 1570 mm | 1620 mm |
| Wheelbase Size | 2630 mm | 2830 mm |
