2005 Audi A6 vs. 1981 BMW 745
To start off, 2005 Audi A6 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 72 more horse power than 2005 Audi A6. (180 HP @ 3300 RPM) In normal driving conditions, 1981 BMW 745 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 290 kg more than 1981 BMW 745.
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 Audi A6, 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, both vehicles can yield 380 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2005 Audi A6 | 1981 BMW 745 | |
| Make | Audi | BMW |
| Model | A6 | 745 |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2669 cc | 3430 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 180 HP | 252 HP |
| Engine RPM | 3300 RPM | 5200 RPM |
| Torque | 380 Nm | 380 Nm |
| Torque RPM | 1400 RPM | 2200 RPM |
| Engine Bore Size | 83 mm | 92 mm |
| Engine Stroke Size | 83.1 mm | 86 mm |
| Engine Compression Ratio | 17.0:1 | 8.0:1 |
| Top Speed | 225 km/hour | 220 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1590 kg |
| Vehicle Length | 4920 mm | 4870 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2580 mm | 2800 mm |
| Fuel Tank Capacity | 70 L | 100 L |
