2007 BMW 645 vs. 2005 Opel Astra
To start off, 2007 BMW 645 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 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW 645 (328 HP @ 6100 RPM) has 231 more horse power than 2005 Opel Astra. (97 HP @ 6000 RPM). In normal driving conditions, 2007 BMW 645 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 526 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 645 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 645. 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 645 (450 Nm @ 3600 RPM) has 308 more torque (in Nm) than 2005 Opel Astra. (142 Nm @ 3600 RPM). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
2007 BMW 645 | 2005 Opel Astra | |
Make | BMW | Opel |
Model | 645 | Astra |
Year Released | 2007 | 2005 |
Body Type | Coupe | Sedan |
Engine Position | Front | Front |
Engine Size | 4398 cc | 1598 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 328 HP | 97 HP |
Engine RPM | 6100 RPM | 6000 RPM |
Torque | 450 Nm | 142 Nm |
Torque RPM | 3600 RPM | 3600 RPM |
Engine Compression Ratio | 10.0:1 | 9.8:1 |
Top Speed | 245 km/hour | 193 km/hour |
Acceleration 0-100mph | 5.6 seconds | 11.5 seconds |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1690 kg | 1164 kg |
Wheelbase Size | 2790 mm | 2610 mm |
Fuel Consumption Overall | 11.8 L/100km | 7.8 L/100km |
Fuel Tank Capacity | 70 L | 52 L |