2005 BMW 325 vs. 1998 Opel Signum
To start off, 2005 BMW 325 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Opel Signum. In addition, the cost of maintenance, including insurance, on 1998 Opel Signum would be higher. At 2,494 cc (6 cylinders), 2005 BMW 325 is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (184 HP @ 6100 RPM) has 85 more horse power than 1998 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2005 BMW 325 should accelerate faster than 1998 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 325 weights approximately 45 kg more than 1998 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 325 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 2005 BMW 325. However, in wet, icy, snow, or gravel driving conditions, 1998 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, 2005 BMW 325 (245 Nm @ 3500 RPM) has 60 more torque (in Nm) than 1998 Opel Signum. (185 Nm @ 1500 RPM). This means 2005 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Signum.
Compare all specifications:
| 2005 BMW 325 | 1998 Opel Signum | |
| Make | BMW | Opel |
| Model | 325 | Signum |
| Year Released | 2005 | 1998 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1909 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 184 HP | 99 HP |
| Engine RPM | 6100 RPM | 3120 RPM |
| Torque | 245 Nm | 185 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 75 mm | 90 mm |
| Engine Compression Ratio | 11.0:1 | 18.5:1 |
| Top Speed | 234 km/hour | 185 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1640 kg | 1595 kg |
| Vehicle Length | 4490 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2840 mm |
| Fuel Tank Capacity | 63 L | 60 L |
