2007 BMW 550 vs. 2005 Opel Astra
To start off, 2007 BMW 550 is newer by 2 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 4,797 cc, 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (657 HP @ 3400 RPM) has 460 more horse power than 2005 Opel Astra. (197 HP @ 5400 RPM). In normal driving conditions, 2007 BMW 550 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 550 weights approximately 405 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 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, 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, 2007 BMW 550 (490 Nm @ 3400 RPM) has 228 more torque (in Nm) than 2005 Opel Astra. (262 Nm @ 4200 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 2007 BMW 550 has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 550 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 550 | 2005 Opel Astra | |
| Make | BMW | Opel |
| Model | 550 | Astra |
| Year Released | 2007 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 4797 cc | 1910 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 657 HP | 197 HP |
| Engine RPM | 3400 RPM | 5400 RPM |
| Torque | 490 Nm | 262 Nm |
| Torque RPM | 3400 RPM | 4200 RPM |
| Engine Compression Ratio | 10.5:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.6 seconds | 7.8 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1660 kg | 1255 kg |
| Vehicle Length | 4850 mm | 4300 mm |
| Vehicle Width | 1470 mm | 1760 mm |
| Vehicle Height | 1850 mm | 1440 mm |
| Wheelbase Size | 2890 mm | 2640 mm |
| Fuel Consumption Overall | 10.8 L/100km | 9 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
