2006 Audi S4 vs. 1956 Rover P4
To start off, 2006 Audi S4 is newer by 50 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 4,162 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 231 more horse power than 1956 Rover P4. (108 HP @ 4250 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1956 Rover P4. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 173 kg more than 2006 Audi S4.
Because 2006 Audi S4 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, 2006 Audi S4 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 204 more torque (in Nm) than 1956 Rover P4. (206 Nm @ 2500 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1956 Rover P4.
Compare all specifications:
| 2006 Audi S4 | 1956 Rover P4 | |
| Make | Audi | Rover |
| Model | S4 | P4 |
| Year Released | 2006 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 2636 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 108 HP |
| Engine RPM | 7000 RPM | 4250 RPM |
| Torque | 410 Nm | 206 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 73 mm |
| Engine Stroke Size | 92.8 mm | 105 mm |
| Engine Compression Ratio | 11.0:1 | 8.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1448 kg |
| Vehicle Length | 4590 mm | 4530 mm |
| Vehicle Width | 1730 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2650 mm | 2830 mm |
| Fuel Tank Capacity | 63 L | 52 L |
