1986 BMW 730 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 21 year(s). Which means there will be less support and parts availability for 1986 BMW 730. In addition, the cost of maintenance, including insurance, on 1986 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1986 BMW 730 is equipped with a bigger engine. In terms of performance, 1986 BMW 730 (197 HP @ 5800 RPM) has 22 more horse power than 2007 BMW 525. (175 HP @ 4000 RPM). In normal driving conditions, 1986 BMW 730 should accelerate faster than 2007 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 60 kg more than 1986 BMW 730.
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, 2007 BMW 525 (400 Nm @ 2000 RPM) has 125 more torque (in Nm) than 1986 BMW 730. (275 Nm @ 4000 RPM). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1986 BMW 730.
Compare all specifications:
| 1986 BMW 730 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | 730 | 525 |
| Year Released | 1986 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 175 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 275 Nm | 400 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 80 mm | 75.1 mm |
| Engine Compression Ratio | 9.2:1 | 17.0:1 |
| Top Speed | 225 km/hour | 230 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 8.1 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1600 kg | 1660 kg |
| Vehicle Length | 4920 mm | 4850 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2890 mm |
