1988 BMW 525 vs. 2007 BMW X5
To start off, 2007 BMW X5 is newer by 19 year(s). Which means there will be less support and parts availability for 1988 BMW 525. In addition, the cost of maintenance, including insurance, on 1988 BMW 525 would be higher. At 2,979 cc (6 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (228 HP @ 5900 RPM) has 63 more horse power than 1988 BMW 525. (165 HP @ 5800 RPM) In normal driving conditions, 2007 BMW X5 should accelerate faster than 1988 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 465 kg more than 1988 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1988 BMW 525. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 will offer significantly more control. 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 X5 (300 Nm @ 3500 RPM) has 61 more torque (in Nm) than 1988 BMW 525. (239 Nm @ 4300 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1988 BMW 525.
Compare all specifications:
| 1988 BMW 525 | 2007 BMW X5 | |
| Make | BMW | BMW |
| Model | 525 | X5 |
| Year Released | 1988 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2441 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 165 HP | 228 HP |
| Engine RPM | 5800 RPM | 5900 RPM |
| Torque | 239 Nm | 300 Nm |
| Torque RPM | 4300 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 75 mm | 89.6 mm |
| Engine Compression Ratio | 8.8:1 | 10.0:1 |
| Top Speed | 203 km/hour | 210 km/hour |
| Acceleration 0-100mph | 11.6 seconds | 8.6 seconds |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1605 kg | 2070 kg |
| Vehicle Length | 4730 mm | 4670 mm |
| Vehicle Width | 1760 mm | 1880 mm |
| Vehicle Height | 1420 mm | 1720 mm |
| Wheelbase Size | 2770 mm | 2830 mm |
| Fuel Tank Capacity | 70 L | 93 L |
