2007 BMW 730 vs. 1991 Opel Astra
To start off, 2007 BMW 730 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,993 cc (6 cylinders), 2007 BMW 730 is equipped with a bigger engine. In terms of performance, 2007 BMW 730 (228 HP @ 4000 RPM) has 146 more horse power than 1991 Opel Astra. (82 HP @ 4400 RPM). In normal driving conditions, 2007 BMW 730 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 730 weights approximately 845 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW 730. However, in wet, icy, snow, or gravel driving conditions, 1991 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 730 (520 Nm @ 2000 RPM) has 352 more torque (in Nm) than 1991 Opel Astra. (168 Nm @ 2400 RPM). This means 2007 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra. 2007 BMW 730 has automatic transmission and 1991 Opel Astra has manual transmission. 1991 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 730 | 1991 Opel Astra | |
| Make | BMW | Opel |
| Model | 730 | Astra |
| Year Released | 2007 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1686 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 228 HP | 82 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 520 Nm | 168 Nm |
| Torque RPM | 2000 RPM | 2400 RPM |
| Engine Compression Ratio | 18.0:1 | 22.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 233 km/hour | 164 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1975 kg | 1130 kg |
| Vehicle Length | 4230 mm | 4060 mm |
| Vehicle Width | 1910 mm | 1690 mm |
| Vehicle Height | 1500 mm | 1430 mm |
| Wheelbase Size | 3000 mm | 2640 mm |
| Fuel Tank Capacity | 88 L | 75 L |
