2004 Audi A6 vs. 1972 BMW 520
To start off, 2004 Audi A6 is newer by 32 year(s). Which means there will be less support and parts availability for 1972 BMW 520. In addition, the cost of maintenance, including insurance, on 1972 BMW 520 would be higher. At 2,671 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (247 HP @ 6300 RPM) has 97 more horse power than 1972 BMW 520. (150 HP @ 5900 RPM). In normal driving conditions, 2004 Audi A6 should accelerate faster than 1972 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 360 kg more than 1972 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1972 BMW 520. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A6 (340 Nm @ 1800 RPM) has 150 more torque (in Nm) than 1972 BMW 520. (190 Nm @ 4200 RPM). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1972 BMW 520.
Compare all specifications:
| 2004 Audi A6 | 1972 BMW 520 | |
| Make | Audi | BMW |
| Model | A6 | 520 |
| Year Released | 2004 | 1972 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 150 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 340 Nm | 190 Nm |
| Torque RPM | 1800 RPM | 4200 RPM |
| Engine Bore Size | 81 mm | 80 mm |
| Engine Stroke Size | 86 mm | 66 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1805 kg | 1445 kg |
| Vehicle Length | 4800 mm | 4630 mm |
| Vehicle Width | 1860 mm | 1700 mm |
| Vehicle Height | 1560 mm | 1430 mm |
| Wheelbase Size | 2770 mm | 2770 mm |
| Fuel Tank Capacity | 70 L | 80 L |
