2003 BMW 520 vs. 1991 Opel Astra
To start off, 2003 BMW 520 is newer by 12 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 2,170 cc (6 cylinders), 2003 BMW 520 is equipped with a bigger engine. In terms of performance, 2003 BMW 520 (167 HP @ 6100 RPM) has 111 more horse power than 1991 Opel Astra. (56 HP @ 4600 RPM). In normal driving conditions, 2003 BMW 520 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 620 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 2003 BMW 520 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 2003 BMW 520. 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, 2003 BMW 520 (210 Nm @ 3500 RPM) has 105 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 RPM). This means 2003 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2003 BMW 520 | 1991 Opel Astra | |
| Make | BMW | Opel |
| Model | 520 | Astra |
| Year Released | 2003 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 1700 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 167 HP | 56 HP |
| Engine RPM | 6100 RPM | 4600 RPM |
| Torque | 210 Nm | 105 Nm |
| Torque RPM | 3500 RPM | 2400 RPM |
| Engine Bore Size | 80 mm | 82.5 mm |
| Engine Stroke Size | 72 mm | 79.5 mm |
| Engine Compression Ratio | 10.7:1 | 23.0:1 |
| Top Speed | 223 km/hour | 150 km/hour |
| Acceleration 0-100mph | 9.5 seconds | 18.8 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1670 kg | 1050 kg |
| Vehicle Length | 4810 mm | 4060 mm |
| Vehicle Width | 1810 mm | 1670 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2530 mm |
| Fuel Tank Capacity | 70 L | 40 L |
