1990 Rover 400 vs. 1971 Rover P5B
To start off, 1990 Rover 400 is newer by 19 year(s). Which means there will be less support and parts availability for 1971 Rover P5B. In addition, the cost of maintenance, including insurance, on 1971 Rover P5B would be higher. At 3,528 cc (8 cylinders), 1971 Rover P5B is equipped with a bigger engine. In terms of performance, 1971 Rover P5B (158 HP @ 5200 RPM) has 43 more horse power than 1990 Rover 400. (115 HP @ 6300 RPM) In normal driving conditions, 1971 Rover P5B should accelerate faster than 1990 Rover 400. With that said, vehicle weight also plays an important factor in acceleration. 1971 Rover P5B weights approximately 505 kg more than 1990 Rover 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1971 Rover P5B 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 1971 Rover P5B. However, in wet, icy, snow, or gravel driving conditions, 1990 Rover 400, 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, 1971 Rover P5B (296 Nm @ 3000 RPM) has 152 more torque (in Nm) than 1990 Rover 400. (144 Nm @ 5200 RPM). This means 1971 Rover P5B will have an easier job in driving up hills or pulling heavy equipment than 1990 Rover 400. 1971 Rover P5B has automatic transmission and 1990 Rover 400 has manual transmission. 1990 Rover 400 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Rover P5B will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1990 Rover 400 | 1971 Rover P5B | |
| Make | Rover | Rover |
| Model | 400 | P5B |
| Year Released | 1990 | 1971 |
| Engine Size | 1590 cc | 3528 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 115 HP | 158 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 144 Nm | 296 Nm |
| Torque RPM | 5200 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1075 kg | 1580 kg |
| Vehicle Length | 4370 mm | 4750 mm |
| Vehicle Width | 1690 mm | 1790 mm |
| Vehicle Height | 1410 mm | 1480 mm |
| Wheelbase Size | 2560 mm | 2820 mm |
