1973 Austin Allegro vs. 1956 Rover P4
To start off, 1973 Austin Allegro is newer by 17 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 2,636 cc (6 cylinders), 1956 Rover P4 is equipped with a bigger engine. In terms of performance, 1956 Rover P4 (108 HP @ 4250 RPM) has 37 more horse power than 1973 Austin Allegro. (71 HP @ 5500 RPM) In normal driving conditions, 1956 Rover P4 should accelerate faster than 1973 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 1956 Rover P4 weights approximately 558 kg more than 1973 Austin Allegro. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1973 Austin Allegro, 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 74 more torque (in Nm) than 1973 Austin Allegro. (132 Nm @ 2300 RPM). This means 1956 Rover P4 will have an easier job in driving up hills or pulling heavy equipment than 1973 Austin Allegro.
Compare all specifications:
| 1973 Austin Allegro | 1956 Rover P4 | |
| Make | Austin | Rover |
| Model | Allegro | P4 |
| Year Released | 1973 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 1748 cc | 2636 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 71 HP | 108 HP |
| Engine RPM | 5500 RPM | 4250 RPM |
| Torque | 132 Nm | 206 Nm |
| Torque RPM | 2300 RPM | 2500 RPM |
| Engine Bore Size | 76.2 mm | 73 mm |
| Engine Stroke Size | 95.8 mm | 105 mm |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 890 kg | 1448 kg |
| Vehicle Length | 3200 mm | 4530 mm |
| Vehicle Width | 1620 mm | 1670 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2450 mm | 2830 mm |
| Fuel Tank Capacity | 47 L | 52 L |
