2009 BMW Z4 vs. 2008 Opel Astra
To start off, 2009 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Opel Astra. In addition, the cost of maintenance, including insurance, on 2008 Opel Astra would be higher. At 3,244 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 234 more horse power than 2008 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2008 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 230 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 2009 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 2009 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, 2009 BMW Z4 (365 Nm @ 4900 RPM) has 215 more torque (in Nm) than 2008 Opel Astra. (150 Nm @ 3900 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Astra. 2008 Opel Astra has automatic transmission and 2009 BMW Z4 has manual transmission. 2009 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW Z4 | 2008 Opel Astra | |
| Make | BMW | Opel |
| Model | Z4 | Astra |
| Year Released | 2009 | 2008 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3244 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 104 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 365 Nm | 150 Nm |
| Torque RPM | 4900 RPM | 3900 RPM |
| Engine Compression Ratio | 11.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 180 km/hour |
| Acceleration 0-100mph | 5 seconds | 12.3 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1265 kg |
| Vehicle Length | 4120 mm | 3540 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1290 mm | 1700 mm |
| Wheelbase Size | 2500 mm | 2620 mm |
| Fuel Consumption Overall | 12.1 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 60 L | 52 L |
