2004 Opel Signum vs. 2010 BMW 325
To start off, 2010 BMW 325 is newer by 6 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 2,494 cc (6 cylinders), 2010 BMW 325 is equipped with a bigger engine. In terms of performance, 2010 BMW 325 (189 HP @ 6000 RPM) has 16 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM) In normal driving conditions, 2010 BMW 325 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 65 kg more than 2010 BMW 325.
Because 2010 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 2010 BMW 325. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 20 more torque (in Nm) than 2010 BMW 325. (245 Nm @ 3500 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2010 BMW 325.
Compare all specifications:
| 2004 Opel Signum | 2010 BMW 325 | |
| Make | Opel | BMW |
| Model | Signum | 325 |
| Year Released | 2004 | 2010 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2494 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 189 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 265 Nm | 245 Nm |
| Torque RPM | 2500 RPM | 3500 RPM |
| Engine Bore Size | 86 mm | 84.1 mm |
| Engine Stroke Size | 86 mm | 75 mm |
| Engine Compression Ratio | 9.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1495 kg |
| Vehicle Length | 4640 mm | 4490 mm |
| Vehicle Width | 1800 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2840 mm | 2730 mm |
| Fuel Consumption Overall | 9.4 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 60 L | 63 L |
