1975 BMW 520 vs. 1978 BMW 725
To start off, 1978 BMW 725 is newer by 3 year(s). Which means there will be less support and parts availability for 1975 BMW 520. In addition, the cost of maintenance, including insurance, on 1975 BMW 520 would be higher. At 2,495 cc (6 cylinders), 1978 BMW 725 is equipped with a bigger engine. In terms of performance, 1978 BMW 725 (148 HP @ 5500 RPM) has 25 more horse power than 1975 BMW 520. (123 HP @ 5700 RPM) In normal driving conditions, 1978 BMW 725 should accelerate faster than 1975 BMW 520.
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 725 (215 Nm @ 4000 RPM) has 43 more torque (in Nm) than 1975 BMW 520. (172 Nm @ 4350 RPM). This means 1978 BMW 725 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 520.
Compare all specifications:
1975 BMW 520 | 1978 BMW 725 | |
Make | BMW | BMW |
Model | 520 | 725 |
Year Released | 1975 | 1978 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 1991 cc | 2495 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 123 HP | 148 HP |
Engine RPM | 5700 RPM | 5500 RPM |
Torque | 172 Nm | 215 Nm |
Torque RPM | 4350 RPM | 4000 RPM |
Engine Compression Ratio | 9.3:1 | 9.6:1 |
Drive Type | Rear | Rear |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Length | 4630 mm | 4870 mm |
Vehicle Width | 1700 mm | 1810 mm |
Vehicle Height | 1430 mm | 1440 mm |
Wheelbase Size | 2640 mm | 2810 mm |