2003 Audi RS6 vs. 1977 BMW 520
To start off, 2003 Audi RS6 is newer by 26 year(s). Which means there will be less support and parts availability for 1977 BMW 520. In addition, the cost of maintenance, including insurance, on 1977 BMW 520 would be higher. At 4,163 cc (8 cylinders), 2003 Audi RS6 is equipped with a bigger engine. In terms of performance, 2003 Audi RS6 (444 HP @ 6300 RPM) has 310 more horse power than 1977 BMW 520. (134 HP @ 4000 RPM). In normal driving conditions, 2003 Audi RS6 should accelerate faster than 1977 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS6 weights approximately 345 kg more than 1977 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1977 BMW 520. In wet, icy, snow, or gravel driving conditions, 2003 Audi RS6 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, 2003 Audi RS6 (560 Nm @ 1950 RPM) has 280 more torque (in Nm) than 1977 BMW 520. (280 Nm @ 1750 RPM). This means 2003 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1977 BMW 520.
Compare all specifications:
| 2003 Audi RS6 | 1977 BMW 520 | |
| Make | Audi | BMW |
| Model | RS6 | 520 |
| Year Released | 2003 | 1977 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1951 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 134 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 560 Nm | 280 Nm |
| Torque RPM | 1950 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 93 mm | 88 mm |
| Engine Compression Ratio | 9.3:1 | 19.0:1 |
| Top Speed | 250 km/hour | 206 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1565 kg |
| Vehicle Length | 4860 mm | 4780 mm |
| Vehicle Width | 1860 mm | 1810 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2760 mm | 2840 mm |
| Fuel Consumption Highway | 10.4 L/100km | 4.7 L/100km |
| Fuel Consumption City | 21.8 L/100km | 7.8 L/100km |
| Fuel Consumption Overall | 14.6 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
