1991 BMW 525 vs. 1986 BMW 735
To start off, 1991 BMW 525 is newer by 5 year(s). Which means there will be less support and parts availability for 1986 BMW 735. In addition, the cost of maintenance, including insurance, on 1986 BMW 735 would be higher. At 3,453 cc (6 cylinders), 1986 BMW 735 is equipped with a bigger engine. In terms of performance, 1986 BMW 735 (215 HP @ 5200 RPM) has 72 more horse power than 1991 BMW 525. (143 HP @ 4800 RPM) In normal driving conditions, 1986 BMW 735 should accelerate faster than 1991 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1986 BMW 735 weights approximately 126 kg more than 1991 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1986 BMW 735 (310 Nm @ 4000 RPM) has 50 more torque (in Nm) than 1991 BMW 525. (260 Nm @ 2200 RPM). This means 1986 BMW 735 will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 525.
Compare all specifications:
| 1991 BMW 525 | 1986 BMW 735 | |
| Make | BMW | BMW |
| Model | 525 | 735 |
| Year Released | 1991 | 1986 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 3453 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 143 HP | 215 HP |
| Engine RPM | 4800 RPM | 5200 RPM |
| Torque | 260 Nm | 310 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 92 mm |
| Engine Stroke Size | 83 mm | 86 mm |
| Engine Compression Ratio | 22.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1686 kg |
| Vehicle Length | 4730 mm | 4920 mm |
| Vehicle Width | 1760 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
| Fuel Tank Capacity | 80 L | 90 L |
