2006 BMW 525 vs. 1975 BMW 520
To start off, 2006 BMW 525 is newer by 31 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 2,999 cc, 2006 BMW 525 is equipped with a bigger engine. In terms of performance, 2006 BMW 525 (215 HP @ 6250 RPM) has 92 more horse power than 1975 BMW 520. (123 HP @ 5700 RPM). In normal driving conditions, 2006 BMW 525 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, 2006 BMW 525 (251 Nm @ 2750 RPM) has 79 more torque (in Nm) than 1975 BMW 520. (172 Nm @ 4350 RPM). This means 2006 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 520.
Compare all specifications:
| 2006 BMW 525 | 1975 BMW 520 | |
| Make | BMW | BMW |
| Model | 525 | 520 |
| Year Released | 2006 | 1975 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2999 cc | 1991 cc |
| Horse Power | 215 HP | 123 HP |
| Engine RPM | 6250 RPM | 5700 RPM |
| Torque | 251 Nm | 172 Nm |
| Torque RPM | 2750 RPM | 4350 RPM |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4860 mm | 4630 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2640 mm |
| Fuel Tank Capacity | 70 L | 70 L |
