2007 BMW Z4 vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 3,246 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 215 more horse power than 2008 Opel Astra. (123 HP @ 5600 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2008 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 207 kg more than 2008 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 2007 BMW Z4 (365 Nm @ 4900 RPM) has 190 more torque (in Nm) than 2008 Opel Astra. (175 Nm @ 3800 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Astra.
Compare all specifications:
| 2007 BMW Z4 | 2008 Opel Astra | |
| Make | BMW | Opel |
| Model | Z4 | Astra |
| Year Released | 2007 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 123 HP |
| Engine RPM | 7900 RPM | 5600 RPM |
| Torque | 365 Nm | 175 Nm |
| Torque RPM | 4900 RPM | 3800 RPM |
| Engine Bore Size | 87 mm | 80.5 mm |
| Engine Stroke Size | 91 mm | 88.2 mm |
| Engine Compression Ratio | 11.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 5 seconds | 10.1 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1278 kg |
| Vehicle Length | 4120 mm | 4300 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2620 mm |
| Fuel Consumption Overall | 12.1 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 55 L | 52 L |
