2005 Opel Astra vs. 2012 BMW Z4
To start off, 2012 BMW Z4 is newer by 7 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 3,000 cc (6 cylinders), 2012 BMW Z4 is equipped with a bigger engine. In terms of performance, 2012 BMW Z4 (300 HP @ 5800 RPM) has 203 more horse power than 2005 Opel Astra. (97 HP @ 6000 RPM) In normal driving conditions, 2012 BMW Z4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW Z4 weights approximately 480 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 2012 BMW Z4 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 2012 BMW Z4. 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, 2012 BMW Z4 (406 Nm @ 1400 RPM) has 264 more torque (in Nm) than 2005 Opel Astra. (142 Nm @ 3600 RPM). This means 2012 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2005 Opel Astra | 2012 BMW Z4 | |
| Make | Opel | BMW |
| Model | Astra | Z4 |
| Year Released | 2005 | 2012 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 3000 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 97 HP | 300 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 142 Nm | 406 Nm |
| Torque RPM | 3600 RPM | 1400 RPM |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1110 kg | 1590 kg |
| Wheelbase Size | 2700 mm | 2497 mm |
| Fuel Tank Capacity | 52 L | 55 L |
