2006 BMW Z4 vs. 1990 Rover 400
To start off, 2006 BMW Z4 is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Rover 400. In addition, the cost of maintenance, including insurance, on 1990 Rover 400 would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 74 more horse power than 1990 Rover 400. (115 HP @ 6300 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1990 Rover 400. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 260 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 2006 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 2006 BMW Z4. 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 101 more torque (in Nm) than 1990 Rover 400. (144 Nm @ 5200 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1990 Rover 400.
Compare all specifications:
| 2006 BMW Z4 | 1990 Rover 400 | |
| Make | BMW | Rover |
| Model | Z4 | 400 |
| Year Released | 2006 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1590 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 115 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 245 Nm | 144 Nm |
| Torque RPM | 3500 RPM | 5200 RPM |
| Engine Bore Size | 84 mm | 75 mm |
| Engine Stroke Size | 75 mm | 90 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1335 kg | 1075 kg |
| Vehicle Length | 4100 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1310 mm | 1410 mm |
| Wheelbase Size | 2500 mm | 2560 mm |
