2005 Audi S4 vs. 1972 BMW 520
To start off, 2005 Audi S4 is newer by 33 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 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 226 more horse power than 1972 BMW 520. (113 HP @ 5800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1972 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 445 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 2005 Audi S4 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, 2005 Audi S4 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 S4 (430 Nm @ 3500 RPM) has 265 more torque (in Nm) than 1972 BMW 520. (165 Nm @ 3700 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1972 BMW 520.
Compare all specifications:
| 2005 Audi S4 | 1972 BMW 520 | |
| Make | Audi | BMW |
| Model | S4 | 520 |
| Year Released | 2005 | 1972 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1989 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 339 HP | 113 HP |
| Engine RPM | 7000 RPM | 5800 RPM |
| Torque | 430 Nm | 165 Nm |
| Torque RPM | 3500 RPM | 3700 RPM |
| Engine Bore Size | 84.5 mm | 89 mm |
| Engine Stroke Size | 92.8 mm | 80 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Top Speed | 250 km/hour | 172 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 12.3 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1675 kg | 1230 kg |
| Vehicle Length | 4580 mm | 4630 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2580 mm | 2640 mm |
| Fuel Tank Capacity | 66 L | 70 L |
