2003 BMW 545 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 BMW 545. In addition, the cost of maintenance, including insurance, on 2003 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 545 is equipped with a bigger engine. In terms of performance, 2003 BMW 545 (328 HP @ 6100 RPM) has 229 more horse power than 2006 Opel Astra. (99 HP @ 3500 RPM). In normal driving conditions, 2003 BMW 545 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 545 weights approximately 310 kg more than 2006 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 545 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 2003 BMW 545. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2003 BMW 545 (450 Nm @ 3600 RPM) has 190 more torque (in Nm) than 2006 Opel Astra. (260 Nm @ 1700 RPM). This means 2003 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2003 BMW 545 | 2006 Opel Astra | |
| Make | BMW | Opel |
| Model | 545 | Astra |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1910 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 99 HP |
| Engine RPM | 6100 RPM | 3500 RPM |
| Torque | 450 Nm | 260 Nm |
| Torque RPM | 3600 RPM | 1700 RPM |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Top Speed | 250 km/hour | 177 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 12.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1705 kg | 1395 kg |
| Vehicle Length | 4850 mm | 4300 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2840 mm | 2620 mm |
| Fuel Consumption Overall | 10.9 L/100km | 6 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
