1990 BMW 525 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 13 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 2,494 cc (6 cylinders), 1990 BMW 525 is equipped with a bigger engine. In terms of performance, 1990 BMW 525 (185 HP @ 5900 RPM) has 41 more horse power than 2003 Opel Signum. (144 HP @ 6000 RPM). In normal driving conditions, 1990 BMW 525 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 111 kg more than 1990 BMW 525.
Because 1990 BMW 525 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1990 BMW 525. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, both vehicles can yield 240 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1990 BMW 525 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 525 | Signum |
| Year Released | 1990 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 185 HP | 144 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 240 Nm | 240 Nm |
| Torque RPM | 4700 RPM | 3800 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 75 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 12.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1575 kg | 1686 kg |
| Vehicle Length | 4730 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2640 mm |
