2002 BMW Z4 vs. 1991 Rover 400
To start off, 2002 BMW Z4 is newer by 11 year(s). Which means there will be less support and parts availability for 1991 Rover 400. In addition, the cost of maintenance, including insurance, on 1991 Rover 400 would be higher. At 2,494 cc (6 cylinders), 2002 BMW Z4 is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (190 HP @ 6000 RPM) has 96 more horse power than 1991 Rover 400. (94 HP @ 6250 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 1991 Rover 400. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z4 weights approximately 375 kg more than 1991 Rover 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 BMW Z4 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 2002 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1991 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, 2002 BMW Z4 (245 Nm @ 3500 RPM) has 121 more torque (in Nm) than 1991 Rover 400. (124 Nm @ 4000 RPM). This means 2002 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 400.
Compare all specifications:
| 2002 BMW Z4 | 1991 Rover 400 | |
| Make | BMW | Rover |
| Model | Z4 | 400 |
| Year Released | 2002 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1395 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 190 HP | 94 HP |
| Engine RPM | 6000 RPM | 6250 RPM |
| Torque | 245 Nm | 124 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 75 mm |
| Engine Stroke Size | 75 mm | 79 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1395 kg | 1020 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1310 mm | 1410 mm |
| Wheelbase Size | 2580 mm | 2560 mm |
