2001 Audi A4 vs. 1956 BMW 503
To start off, 2001 Audi A4 is newer by 45 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, 2001 Audi A4 (248 HP @ 6300 RPM) has 110 more horse power than 1956 BMW 503. (138 HP @ 4800 RPM). In normal driving conditions, 2001 Audi A4 should accelerate faster than 1956 BMW 503. With that said, vehicle weight also plays an important factor in acceleration. 2001 Audi A4 weights approximately 15 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 1956 BMW 503 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1956 BMW 503. However, in wet, icy, snow, or gravel driving conditions, 2001 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2001 Audi A4 (330 Nm @ 3200 RPM) has 108 more torque (in Nm) than 1956 BMW 503. (222 Nm @ 2500 RPM). This means 2001 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1956 BMW 503.
Compare all specifications:
| 2001 Audi A4 | 1956 BMW 503 | |
| Make | Audi | BMW |
| Model | A4 | 503 |
| Year Released | 2001 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 3168 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 248 HP | 138 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 330 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 | 10.5:1 | 7.3:1 |
| Top Speed | 236 km/hour | 190 km/hour |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1515 kg | 1500 kg |
| Vehicle Length | 4550 mm | 4760 mm |
| Vehicle Width | 1770 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 75 L |
