1998 BMW 325 vs. 1991 BMW 525
To start off, 1998 BMW 325 is newer by 7 year(s). Which means there will be less support and parts availability for 1991 BMW 525. In addition, the cost of maintenance, including insurance, on 1991 BMW 525 would be higher. At 2,498 cc (6 cylinders), 1998 BMW 325 is equipped with a bigger engine. In terms of performance, 1991 BMW 525 (143 HP @ 4800 RPM) has 29 more horse power than 1998 BMW 325. (114 HP @ 4800 RPM) In normal driving conditions, 1991 BMW 525 should accelerate faster than 1998 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW 525 weights approximately 126 kg more than 1998 BMW 325. 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, 1991 BMW 525 (260 Nm @ 2200 RPM) has 40 more torque (in Nm) than 1998 BMW 325. (220 Nm @ 1900 RPM). This means 1991 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 325.
Compare all specifications:
| 1998 BMW 325 | 1991 BMW 525 | |
| Make | BMW | BMW |
| Model | 325 | 525 |
| Year Released | 1998 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2498 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 143 HP |
| Engine RPM | 4800 RPM | 4800 RPM |
| Torque | 220 Nm | 260 Nm |
| Torque RPM | 1900 RPM | 2200 RPM |
| Engine Bore Size | 80 mm | 80 mm |
| Engine Stroke Size | 81 mm | 83 mm |
| Engine Compression Ratio | 22.0:1 | 22.0:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1434 kg | 1560 kg |
| Vehicle Length | 4490 mm | 4730 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2730 mm | 2770 mm |
| Fuel Tank Capacity | 63 L | 80 L |
