1975 AC 428 vs. 1956 BMW 503
To start off, 1975 AC 428 is newer by 19 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 7,003 cc (8 cylinders), 1975 AC 428 is equipped with a bigger engine. In terms of performance, 1975 AC 428 (298 HP @ 4600 RPM) has 160 more horse power than 1956 BMW 503. (138 HP @ 4800 RPM). In normal driving conditions, 1975 AC 428 should accelerate faster than 1956 BMW 503. With that said, vehicle weight also plays an important factor in acceleration. 1956 BMW 503 weights approximately 70 kg more than 1975 AC 428.
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, 1975 AC 428 (639 Nm @ 2800 RPM) has 417 more torque (in Nm) than 1956 BMW 503. (222 Nm @ 2500 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1956 BMW 503.
Compare all specifications:
1975 AC 428 | 1956 BMW 503 | |
Make | AC | BMW |
Model | 428 | 503 |
Year Released | 1975 | 1956 |
Engine Position | Front | Front |
Engine Size | 7003 cc | 3168 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | in-line | V |
Horse Power | 298 HP | 138 HP |
Engine RPM | 4600 RPM | 4800 RPM |
Torque | 639 Nm | 222 Nm |
Torque RPM | 2800 RPM | 2500 RPM |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 2 seats | 4 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1430 kg | 1500 kg |
Vehicle Length | 4430 mm | 4760 mm |
Vehicle Width | 1710 mm | 1710 mm |
Vehicle Height | 1310 mm | 1400 mm |
Wheelbase Size | 2450 mm | 2840 mm |