2005 Audi A6 vs. 1981 BMW 725
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 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 2,496 cc, 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (177 HP @ 4000 RPM) has 29 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 1981 BMW 725.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 725. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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, 2005 Audi A6 (370 Nm) has 155 more torque (in Nm) than 1981 BMW 725. (215 Nm). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
| 2005 Audi A6 | 1981 BMW 725 | |
| Make | Audi | BMW |
| Model | A6 | 725 |
| Year Released | 2005 | 1981 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2493 cc |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 177 HP | 148 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 370 Nm | 215 Nm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4820 mm | 4870 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1560 mm | 1440 mm |
| Wheelbase Size | 2770 mm | 2810 mm |
