2005 Audi A6 vs. 1979 BMW 725
To start off, 2005 Audi A6 is newer by 26 year(s). Which means there will be less support and parts availability for 1979 BMW 725. In addition, the cost of maintenance, including insurance, on 1979 BMW 725 would be higher. At 2,983 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (255 HP @ 6300 RPM) has 107 more horse power than 1979 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 1979 BMW 725.
Because 1979 BMW 725 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 1979 BMW 725. 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, 2005 Audi A6 (320 Nm) has 105 more torque (in Nm) than 1979 BMW 725. (215 Nm). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 725.
Compare all specifications:
| 2005 Audi A6 | 1979 BMW 725 | |
| Make | Audi | BMW |
| Model | A6 | 725 |
| Year Released | 2005 | 1979 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 255 HP | 148 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 320 Nm | 215 Nm |
| Engine Compression Ratio | 12.5:1 | 9.6:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4920 mm | 4870 mm |
| Vehicle Width | 2020 mm | 1810 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2760 mm | 2810 mm |
