2005 BMW 730 vs. 2012 Opel Astra
To start off, 2012 Opel Astra is newer by 7 year(s). Which means there will be less support and parts availability for 2005 BMW 730. In addition, the cost of maintenance, including insurance, on 2005 BMW 730 would be higher. At 2,979 cc (6 cylinders), 2005 BMW 730 is equipped with a bigger engine. In terms of performance, 2005 BMW 730 (225 HP @ 4000 RPM) has 87 more horse power than 2012 Opel Astra. (138 HP @ 6300 RPM). In normal driving conditions, 2005 BMW 730 should accelerate faster than 2012 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 730 weights approximately 745 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 2005 BMW 730 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 2005 BMW 730. 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, 2005 BMW 730 (500 Nm @ 2000 RPM) has 324 more torque (in Nm) than 2012 Opel Astra. (176 Nm @ 3800 RPM). This means 2005 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2012 Opel Astra. 2005 BMW 730 has automatic transmission and 2012 Opel Astra has manual transmission. 2012 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW 730 | 2012 Opel Astra | |
| Make | BMW | Opel |
| Model | 730 | Astra |
| Year Released | 2005 | 2012 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 138 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 500 Nm | 176 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 84.1 mm | 80.5 mm |
| Engine Stroke Size | 90 mm | 88.2 mm |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 8 seconds | 10.2 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1975 kg | 1230 kg |
| Vehicle Length | 5050 mm | 4480 mm |
| Vehicle Width | 1910 mm | 2030 mm |
| Vehicle Height | 1500 mm | 1420 mm |
| Wheelbase Size | 2890 mm | 2620 mm |
| Fuel Consumption Overall | 8.2 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 88 L | 52 L |
