2003 BMW 520 vs. 1986 BMW 735
To start off, 2003 BMW 520 is newer by 17 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 3,430 cc (6 cylinders), 1986 BMW 735 is equipped with a bigger engine. In terms of performance, 1986 BMW 735 (220 HP @ 5700 RPM) has 53 more horse power than 2003 BMW 520. (167 HP @ 5800 RPM) In normal driving conditions, 1986 BMW 735 should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1986 BMW 735 weights approximately 30 kg more than 2003 BMW 520. 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 (315 Nm @ 4000 RPM) has 105 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 1986 BMW 735 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520.
Compare all specifications:
| 2003 BMW 520 | 1986 BMW 735 | |
| Make | BMW | BMW |
| Model | 520 | 735 |
| Year Released | 2003 | 1986 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 3430 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 167 HP | 220 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 210 Nm | 315 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 92 mm |
| Engine Stroke Size | 72 mm | 86 mm |
| Engine Compression Ratio | 10.8:1 | 9.2:1 |
| Top Speed | 230 km/hour | 238 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1590 kg |
| Vehicle Length | 4850 mm | 4920 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 3000 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 70 L |
