2009 Audi A4 vs. 1956 BMW 503
To start off, 2009 Audi A4 is newer by 53 year(s). Which means there will be less support and parts availability for 1956 BMW 503. In addition, the cost of maintenance, including insurance, on 1956 BMW 503 would be higher. At 3,168 cc (8 cylinders), 1956 BMW 503 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (217 HP @ 6300 RPM) has 79 more horse power than 1956 BMW 503. (138 HP @ 4800 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1956 BMW 503. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 175 kg more than 1956 BMW 503. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1956 BMW 503. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2009 Audi A4 (300 Nm @ 3200 RPM) has 78 more torque (in Nm) than 1956 BMW 503. (222 Nm @ 2500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1956 BMW 503.
Compare all specifications:
| 2009 Audi A4 | 1956 BMW 503 | |
| Make | Audi | BMW |
| Model | A4 | 503 |
| Year Released | 2009 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 3168 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 217 HP | 138 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 300 Nm | 222 Nm |
| Torque RPM | 3200 RPM | 2500 RPM |
| Engine Bore Size | 82.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Engine Compression Ratio | 11.0:1 | 7.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 241 km/hour | 190 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1675 kg | 1500 kg |
| Vehicle Length | 4580 mm | 4760 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 66 L | 75 L |
