2004 BMW 745 vs. 2012 Opel Astra
To start off, 2012 Opel Astra is newer by 8 year(s). Which means there will be less support and parts availability for 2004 BMW 745. In addition, the cost of maintenance, including insurance, on 2004 BMW 745 would be higher. At 4,392 cc (8 cylinders), 2004 BMW 745 is equipped with a bigger engine. In terms of performance, 2004 BMW 745 (310 HP @ 7900 RPM) has 187 more horse power than 2012 Opel Astra. (123 HP @ 4000 RPM). In normal driving conditions, 2004 BMW 745 should accelerate faster than 2012 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 745 weights approximately 587 kg more than 2012 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 745 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 2004 BMW 745. However, in wet, icy, snow, or gravel driving conditions, 2012 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, 2004 BMW 745 (451 Nm) has 171 more torque (in Nm) than 2012 Opel Astra. (280 Nm). This means 2004 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2012 Opel Astra.
Compare all specifications:
| 2004 BMW 745 | 2012 Opel Astra | |
| Make | BMW | Opel |
| Model | 745 | Astra |
| Year Released | 2004 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 310 HP | 123 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 451 Nm | 280 Nm |
| Engine Bore Size | 92 mm | 82 mm |
| Engine Stroke Size | 83 mm | 90.4 mm |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1985 kg | 1398 kg |
| Vehicle Length | 5040 mm | 4260 mm |
| Vehicle Width | 1910 mm | 1760 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 3000 mm | 2620 mm |
| Fuel Consumption Overall | 11.2 L/100km | 6 L/100km |
| Fuel Tank Capacity | 88 L | 52 L |
