1990 BMW 525 vs. 2008 BMW 645
To start off, 2008 BMW 645 is newer by 18 year(s). Which means there will be less support and parts availability for 1990 BMW 525. In addition, the cost of maintenance, including insurance, on 1990 BMW 525 would be higher. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 143 more horse power than 1990 BMW 525. (185 HP @ 5900 RPM) In normal driving conditions, 2008 BMW 645 should accelerate faster than 1990 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 240 kg more than 1990 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, 2008 BMW 645 (450 Nm @ 3600 RPM) has 210 more torque (in Nm) than 1990 BMW 525. (240 Nm @ 4700 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1990 BMW 525. 2008 BMW 645 has automatic transmission and 1990 BMW 525 has manual transmission. 1990 BMW 525 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1990 BMW 525 | 2008 BMW 645 | |
| Make | BMW | BMW |
| Model | 525 | 645 |
| Year Released | 1990 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 185 HP | 328 HP |
| Engine RPM | 5900 RPM | 6100 RPM |
| Torque | 240 Nm | 450 Nm |
| Torque RPM | 4700 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 75 mm | 82.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Top Speed | 224 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.2 seconds | 6.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1575 kg | 1815 kg |
| Vehicle Length | 4730 mm | 4830 mm |
| Vehicle Width | 1760 mm | 1860 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2770 mm | 2790 mm |
