2005 Opel Astra vs. 2002 BMW Z3
To start off, 2005 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2002 BMW Z3. In addition, the cost of maintenance, including insurance, on 2002 BMW Z3 would be higher. At 2,990 cc (6 cylinders), 2002 BMW Z3 is equipped with a bigger engine. In terms of performance, 2002 BMW Z3 (229 HP @ 5900 RPM) has 81 more horse power than 2005 Opel Astra. (148 HP @ 4000 RPM) In normal driving conditions, 2002 BMW Z3 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2002 BMW Z3 weights approximately 205 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 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 2002 BMW Z3. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Opel Astra (320 Nm @ 2000 RPM) has 20 more torque (in Nm) than 2002 BMW Z3. (300 Nm @ 3500 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2002 BMW Z3.
Compare all specifications:
| 2005 Opel Astra | 2002 BMW Z3 | |
| Make | Opel | BMW |
| Model | Astra | Z3 |
| Year Released | 2005 | 2002 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2990 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 229 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 320 Nm | 300 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 82.1 mm | 84 mm |
| Engine Stroke Size | 90.4 mm | 89.6 mm |
| Engine Compression Ratio | 17.5:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 8.9 seconds | 6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1200 kg | 1405 kg |
| Vehicle Length | 4300 mm | 4030 mm |
| Vehicle Width | 1800 mm | 1750 mm |
| Vehicle Height | 1440 mm | 1310 mm |
| Wheelbase Size | 2400 mm | 2450 mm |
| Fuel Tank Capacity | 52 L | 51 L |
