1990 BMW 730 vs. 1992 Rover 620i
To start off, 1992 Rover 620i is newer by 2 year(s). Which means there will be less support and parts availability for 1990 BMW 730. In addition, the cost of maintenance, including insurance, on 1990 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1990 BMW 730 is equipped with a bigger engine. In terms of performance, 1990 BMW 730 (181 HP @ 5800 RPM) has 68 more horse power than 1992 Rover 620i. (113 HP @ 5300 RPM). In normal driving conditions, 1990 BMW 730 should accelerate faster than 1992 Rover 620i. With that said, vehicle weight also plays an important factor in acceleration. 1990 BMW 730 weights approximately 345 kg more than 1992 Rover 620i. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1990 BMW 730 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 1990 BMW 730. However, in wet, icy, snow, or gravel driving conditions, 1992 Rover 620i, 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, 1990 BMW 730 (260 Nm @ 4000 RPM) has 88 more torque (in Nm) than 1992 Rover 620i. (172 Nm @ 4200 RPM). This means 1990 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1992 Rover 620i.
Compare all specifications:
| 1990 BMW 730 | 1992 Rover 620i | |
| Make | BMW | Rover |
| Model | 730 | 620i |
| Year Released | 1990 | 1992 |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 113 HP |
| Engine RPM | 5800 RPM | 5300 RPM |
| Torque | 260 Nm | 172 Nm |
| Torque RPM | 4000 RPM | 4200 RPM |
| Engine Bore Size | 89 mm | 85 mm |
| Engine Stroke Size | 80 mm | 88 mm |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1600 kg | 1255 kg |
| Vehicle Length | 4920 mm | 4650 mm |
| Vehicle Width | 1850 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1390 mm |
| Fuel Tank Capacity | 90 L | 65 L |
