1978 BMW B7 vs. 1956 BMW 503
To start off, 1978 BMW B7 is newer by 22 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 3,500 cc (6 cylinders), 1978 BMW B7 is equipped with a bigger engine.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1978 BMW B7 (627 Nm) has 405 more torque (in Nm) than 1956 BMW 503. (222 Nm). This means 1978 BMW B7 will have an easier job in driving up hills or pulling heavy equipment than 1956 BMW 503.
Compare all specifications:
| 1978 BMW B7 | 1956 BMW 503 | |
| Make | BMW | BMW |
| Model | B7 | 503 |
| Year Released | 1978 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 3500 cc | 3168 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 0 HP | 138 HP |
| Torque | 627 Nm | 222 Nm |
| Top Speed | 262 km/hour | 190 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 1500 kg | 1500 kg |
| Wheelbase Size | 2800 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 75 L |
