1990 BMW Z1 vs. 2004 Opel Astra
To start off, 2004 Opel Astra is newer by 14 year(s). Which means there will be less support and parts availability for 1990 BMW Z1. In addition, the cost of maintenance, including insurance, on 1990 BMW Z1 would be higher. At 2,494 cc (6 cylinders), 1990 BMW Z1 is equipped with a bigger engine. In terms of performance, 1990 BMW Z1 (175 HP @ 5800 RPM) has 75 more horse power than 2004 Opel Astra. (100 HP @ 6200 RPM). In normal driving conditions, 1990 BMW Z1 should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Astra weights approximately 100 kg more than 1990 BMW Z1.
Because 1990 BMW Z1 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 Z1. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 1990 BMW Z1 (230 Nm @ 4000 RPM) has 88 more torque (in Nm) than 2004 Opel Astra. (142 Nm @ 3600 RPM). This means 1990 BMW Z1 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra.
Compare all specifications:
| 1990 BMW Z1 | 2004 Opel Astra | |
| Make | BMW | Opel |
| Model | Z1 | Astra |
| Year Released | 1990 | 2004 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1584 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 175 HP | 100 HP |
| Engine RPM | 5800 RPM | 6200 RPM |
| Torque | 230 Nm | 142 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 82 mm | 79 mm |
| Engine Stroke Size | 78.8 mm | 81.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1350 kg |
| Vehicle Length | 3960 mm | 4280 mm |
| Vehicle Width | 1810 mm | 1720 mm |
| Vehicle Height | 1280 mm | 1470 mm |
| Wheelbase Size | 2450 mm | 2620 mm |
