2009 Audi A4 vs. 1956 Rover P4
To start off, 2009 Audi A4 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 3,122 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (252 HP @ 5100 RPM) has 144 more horse power than 1956 Rover P4. (108 HP @ 4250 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 556 kg more than 2009 Audi A4.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1956 Rover P4. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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 Audi A4 (330 Nm @ 3250 RPM) has 124 more torque (in Nm) than 1956 Rover P4. (206 Nm @ 2500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1956 Rover P4. 1956 Rover P4 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 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 Audi A4 | 1956 Rover P4 | |
| Make | Audi | Rover |
| Model | A4 | P4 |
| Year Released | 2009 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 3122 cc | 2638 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 252 HP | 108 HP |
| Engine RPM | 5100 RPM | 4250 RPM |
| Torque | 330 Nm | 206 Nm |
| Torque RPM | 3250 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 73 mm |
| Engine Stroke Size | 92.8 mm | 105 mm |
| Engine Compression Ratio | 12.5:1 | 8.5:1 |
| Top Speed | 250 km/hour | 151 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1486 kg |
| Vehicle Length | 4580 mm | 4530 mm |
| Vehicle Width | 1400 mm | 1670 mm |
| Vehicle Height | 1780 mm | 1320 mm |
| Wheelbase Size | 2660 mm | 2830 mm |
| Fuel Tank Capacity | 70 L | 52 L |
