2009 BMW M5 vs. 1991 Opel Astra
To start off, 2009 BMW M5 is newer by 18 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 4,999 cc (10 cylinders), 2009 BMW M5 is equipped with a bigger engine. In terms of performance, 2009 BMW M5 (500 HP @ 7750 RPM) has 385 more horse power than 1991 Opel Astra. (115 HP @ 5200 RPM). In normal driving conditions, 2009 BMW M5 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW M5 weights approximately 786 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 2009 BMW M5 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 2009 BMW M5. 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, 2009 BMW M5 (520 Nm @ 6100 RPM) has 351 more torque (in Nm) than 1991 Opel Astra. (169 Nm @ 2600 RPM). This means 2009 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra. 2009 BMW M5 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. 2009 BMW M5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW M5 | 1991 Opel Astra | |
| Make | BMW | Opel |
| Model | M5 | Astra |
| Year Released | 2009 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4999 cc | 1998 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 500 HP | 115 HP |
| Engine RPM | 7750 RPM | 5200 RPM |
| Torque | 520 Nm | 169 Nm |
| Torque RPM | 6100 RPM | 2600 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 75.2 mm | 86 mm |
| Engine Compression Ratio | 12.0:1 | 9.2:1 |
| Top Speed | 250 km/hour | 200 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 9.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1836 kg | 1050 kg |
| Vehicle Length | 4860 mm | 4090 mm |
| Vehicle Width | 1850 mm | 1690 mm |
| Vehicle Height | 1480 mm | 1420 mm |
| Wheelbase Size | 2900 mm | 2650 mm |
| Fuel Tank Capacity | 70 L | 75 L |
