2009 Audi A8 vs. 1981 BMW 745
To start off, 2009 Audi A8 is newer by 28 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, 2009 Audi A8 (256 HP) has 4 more horse power than 1981 BMW 745. (252 HP). In normal driving conditions, 2009 Audi A8 should accelerate faster than 1981 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 745 weights approximately 436 kg more than 2009 Audi A8.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 745. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 will offer significantly more control. 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 50 more torque (in Nm) than 2009 Audi A8. (330 Nm @ 3250 RPM). This means 1981 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 1981 BMW 745 | |
| Make | Audi | BMW |
| Model | A8 | 745 |
| Year Released | 2009 | 1981 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 3430 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 256 HP | 252 HP |
| Torque | 330 Nm | 380 Nm |
| Torque RPM | 3250 RPM | 2200 RPM |
| Engine Compression Ratio | 13.0:1 | 8.0:1 |
| Top Speed | 245 km/hour | 227 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 1596 kg |
| Vehicle Length | 5060 mm | 4870 mm |
| Vehicle Width | 1900 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2950 mm | 2770 mm |
| Fuel Tank Capacity | 90 L | 100 L |
