2008 BMW Z4 vs. 1991 Rover 100
To start off, 2008 BMW Z4 is newer by 17 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 2,994 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (215 HP @ 6250 RPM) has 113 more horse power than 1991 Rover 100. (102 HP @ 6000 RPM). In normal driving conditions, 2008 BMW Z4 should accelerate faster than 1991 Rover 100. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW Z4 weights approximately 525 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, 2008 BMW Z4 (251 Nm @ 2750 RPM) has 116 more torque (in Nm) than 1991 Rover 100. (135 Nm @ 5000 RPM). This means 2008 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 100.
Compare all specifications:
| 2008 BMW Z4 | 1991 Rover 100 | |
| Make | BMW | Rover |
| Model | Z4 | 100 |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 1396 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 102 HP |
| Engine RPM | 6250 RPM | 6000 RPM |
| Torque | 251 Nm | 135 Nm |
| Torque RPM | 2750 RPM | 5000 RPM |
| Engine Bore Size | 85.1 mm | 75 mm |
| Engine Stroke Size | 88.1 mm | 79 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1395 kg | 870 kg |
| Vehicle Length | 4100 mm | 3530 mm |
| Vehicle Width | 1790 mm | 1570 mm |
| Vehicle Height | 1300 mm | 1380 mm |
