2009 Chevrolet HHR vs. 1956 Rover P4
To start off, 2009 Chevrolet HHR is newer by 53 year(s). Which means there will be less support and parts availability for 1956 Rover P4. In addition, the cost of maintenance, including insurance, on 1956 Rover P4 would be higher. At 2,638 cc (6 cylinders), 1956 Rover P4 is equipped with a bigger engine. In terms of performance, 2009 Chevrolet HHR (155 HP @ 6100 RPM) has 47 more horse power than 1956 Rover P4. (108 HP @ 4250 RPM). In normal driving conditions, 2009 Chevrolet HHR should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 220 kg more than 2009 Chevrolet HHR.
Because 1956 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 1956 Rover P4. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 1956 Rover P4 (206 Nm @ 2500 RPM) has 3 more torque (in Nm) than 2009 Chevrolet HHR. (203 Nm @ 4800 RPM). This means 1956 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Chevrolet HHR. 1956 Rover P4 has automatic transmission and 2009 Chevrolet HHR has manual transmission. 2009 Chevrolet HHR will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1956 Rover P4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Chevrolet HHR | 1956 Rover P4 | |
| Make | Chevrolet | Rover |
| Model | HHR | P4 |
| Year Released | 2009 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 2201 cc | 2638 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 155 HP | 108 HP |
| Engine RPM | 6100 RPM | 4250 RPM |
| Torque | 203 Nm | 206 Nm |
| Torque RPM | 4800 RPM | 2500 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1266 kg | 1486 kg |
| Vehicle Length | 4480 mm | 4530 mm |
| Vehicle Width | 1760 mm | 1670 mm |
| Vehicle Height | 1610 mm | 1320 mm |
| Wheelbase Size | 2640 mm | 2830 mm |
| Fuel Tank Capacity | 61 L | 52 L |
