2003 BMW 525 vs. 1998 BMW 730
To start off, 2003 BMW 525 is newer by 5 year(s). Which means there will be less support and parts availability for 1998 BMW 730. In addition, the cost of maintenance, including insurance, on 1998 BMW 730 would be higher. At 2,793 cc (6 cylinders), 1998 BMW 730 is equipped with a bigger engine. In terms of performance, 1998 BMW 730 (190 HP @ 5300 RPM) has 6 more horse power than 2003 BMW 525. (184 HP @ 6000 RPM) In normal driving conditions, 1998 BMW 730 should accelerate faster than 2003 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 730 weights approximately 180 kg more than 2003 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, 1998 BMW 730 (280 Nm @ 3950 RPM) has 35 more torque (in Nm) than 2003 BMW 525. (245 Nm @ 3500 RPM). This means 1998 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 525. 1998 BMW 730 has automatic transmission and 2003 BMW 525 has manual transmission. 2003 BMW 525 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1998 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 525 | 1998 BMW 730 | |
| Make | BMW | BMW |
| Model | 525 | 730 |
| Year Released | 2003 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2793 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 184 HP | 190 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 245 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 3950 RPM |
| Engine Bore Size | 84 mm | 84.1 mm |
| Engine Stroke Size | 75 mm | 84 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1565 kg | 1745 kg |
| Vehicle Length | 4850 mm | 5130 mm |
| Vehicle Width | 1850 mm | 1870 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2940 mm |
| Fuel Tank Capacity | 70 L | 90 L |
