1991 Opel Astra vs. 2001 BMW Z3
To start off, 2001 BMW Z3 is newer by 10 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,171 cc (6 cylinders), 2001 BMW Z3 is equipped with a bigger engine. In terms of performance, 2001 BMW Z3 (167 HP @ 6100 RPM) has 67 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM) In normal driving conditions, 2001 BMW Z3 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW Z3 weights approximately 315 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2001 BMW Z3 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 2001 BMW Z3. However, in wet, icy, snow, or gravel driving conditions, 1991 Opel Astra, 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, 2001 BMW Z3 (210 Nm @ 3500 RPM) has 75 more torque (in Nm) than 1991 Opel Astra. (135 Nm @ 3400 RPM). This means 2001 BMW Z3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 1991 Opel Astra | 2001 BMW Z3 | |
| Make | Opel | BMW |
| Model | Astra | Z3 |
| Year Released | 1991 | 2001 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 100 HP | 167 HP |
| Engine RPM | 5600 RPM | 6100 RPM |
| Torque | 135 Nm | 210 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 79 mm | 80 mm |
| Engine Stroke Size | 81.5 mm | 72 mm |
| Engine Compression Ratio | 9.8:1 | 10.8:1 |
| Top Speed | 190 km/hour | 224 km/hour |
| Acceleration 0-100mph | 10.4 seconds | 7.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1030 kg | 1345 kg |
| Vehicle Length | 4250 mm | 4060 mm |
| Vehicle Width | 1690 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2530 mm | 2450 mm |
| Fuel Tank Capacity | 52 L | 51 L |
