2005 BMW 325 vs. 2004 Opel Signum
To start off, 2005 BMW 325 is newer by 1 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 2,491 cc (6 cylinders), 2005 BMW 325 is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (189 HP @ 6000 RPM) has 41 more horse power than 2004 Opel Signum. (148 HP @ 4000 RPM). In normal driving conditions, 2005 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 125 kg more than 2005 BMW 325.
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, 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 (326 Nm @ 2000 RPM) has 81 more torque (in Nm) than 2005 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 2005 BMW 325. 2005 BMW 325 has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 325 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW 325 | 2004 Opel Signum | |
| Make | BMW | Opel |
| Model | 325 | Signum |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2491 cc | 1908 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 189 HP | 148 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 245 Nm | 326 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 75 mm | 90.4 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Top Speed | 240 km/hour | 209 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 10.5 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1485 kg | 1610 kg |
| Vehicle Length | 4530 mm | 4640 mm |
| Vehicle Width | 1820 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2830 mm | 2840 mm |
| Fuel Consumption Highway | 6.9 L/100km | 5.1 L/100km |
| Fuel Consumption City | 13.1 L/100km | 7.8 L/100km |
| Fuel Consumption Overall | 9.2 L/100km | 6.1 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
