1981 BMW 745 vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 24 year(s). Which means there will be less support and parts availability for 1981 BMW 745. In addition, the cost of maintenance, including insurance, on 1981 BMW 745 would be higher. At 3,430 cc (6 cylinders), 1981 BMW 745 is equipped with a bigger engine. In terms of performance, 1981 BMW 745 (252 HP @ 5200 RPM) has 155 more horse power than 2005 Opel Astra. (97 HP @ 6000 RPM). In normal driving conditions, 1981 BMW 745 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 486 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1981 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 1981 BMW 745. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 1981 BMW 745 (380 Nm @ 2200 RPM) has 238 more torque (in Nm) than 2005 Opel Astra. (142 Nm @ 3600 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra. 1981 BMW 745 has automatic transmission and 2005 Opel Astra has manual transmission. 2005 Opel Astra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1981 BMW 745 will be easier to drive especially in heavy traffic.
Compare all specifications:
1981 BMW 745 | 2005 Opel Astra | |
Make | BMW | Opel |
Model | 745 | Astra |
Year Released | 1981 | 2005 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 3430 cc | 1598 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Horse Power | 252 HP | 97 HP |
Engine RPM | 5200 RPM | 6000 RPM |
Torque | 380 Nm | 142 Nm |
Torque RPM | 2200 RPM | 3600 RPM |
Engine Compression Ratio | 8.0:1 | 9.8:1 |
Top Speed | 227 km/hour | 193 km/hour |
Drive Type | Rear | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1596 kg | 1110 kg |
Wheelbase Size | 2770 mm | 2700 mm |
Fuel Tank Capacity | 100 L | 52 L |