2007 BMW 550 vs. 2004 Opel Astra
To start off, 2007 BMW 550 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Astra. In addition, the cost of maintenance, including insurance, on 2004 Opel Astra would be higher. At 4,799 cc (8 cylinders), 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (362 HP @ 6300 RPM) has 277 more horse power than 2004 Opel Astra. (85 HP @ 5400 RPM). In normal driving conditions, 2007 BMW 550 should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 550 weights approximately 345 kg more than 2004 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 550 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 550. However, in wet, icy, snow, or gravel driving conditions, 2004 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 550 (490 Nm @ 3400 RPM) has 351 more torque (in Nm) than 2004 Opel Astra. (139 Nm @ 2600 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra.
Compare all specifications:
| 2007 BMW 550 | 2004 Opel Astra | |
| Make | BMW | Opel |
| Model | 550 | Astra |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 362 HP | 85 HP |
| Engine RPM | 6300 RPM | 5400 RPM |
| Torque | 490 Nm | 139 Nm |
| Torque RPM | 3400 RPM | 2600 RPM |
| Engine Bore Size | 93 mm | 79 mm |
| Engine Stroke Size | 88.3 mm | 81.5 mm |
| Acceleration 0-100mph | 5.8 seconds | 15 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1660 kg | 1315 kg |
| Vehicle Length | 4850 mm | 4290 mm |
| Vehicle Width | 1470 mm | 1720 mm |
| Vehicle Height | 1850 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2610 mm |
| Fuel Tank Capacity | 70 L | 52 L |
