2002 BMW Z4 vs. 1991 Rover 100
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 100. In addition, the cost of maintenance, including insurance, on 1991 Rover 100 would be higher. At 2,996 cc (6 cylinders), 2002 BMW Z4 is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (227 HP @ 5900 RPM) has 125 more horse power than 1991 Rover 100. (102 HP @ 6000 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 1991 Rover 100. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z4 weights approximately 516 kg more than 1991 Rover 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2002 BMW Z4 (300 Nm @ 3500 RPM) has 165 more torque (in Nm) than 1991 Rover 100. (135 Nm @ 5000 RPM). This means 2002 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 100.
Compare all specifications:
| 2002 BMW Z4 | 1991 Rover 100 | |
| Make | BMW | Rover |
| Model | Z4 | 100 |
| Year Released | 2002 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1396 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 227 HP | 102 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84 mm | 75 mm |
| Engine Stroke Size | 89.6 mm | 79 mm |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1386 kg | 870 kg |
| Vehicle Length | 4100 mm | 3530 mm |
| Vehicle Width | 1790 mm | 1570 mm |
| Vehicle Height | 1310 mm | 1380 mm |
