2011 BMW 325 vs. 2003 Opel Signum
To start off, 2011 BMW 325 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2011 BMW 325 (215 HP @ 6100 RPM) has 40 more horse power than 2003 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2011 BMW 325 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 55 kg more than 2011 BMW 325.
Because 2011 BMW 325 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2011 BMW 325 will offer significantly more control. 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, 2003 Opel Signum (371 Nm @ 1900 RPM) has 101 more torque (in Nm) than 2011 BMW 325. (270 Nm @ 2400 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2011 BMW 325.
Compare all specifications:
| 2011 BMW 325 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | 325 | Signum |
| Year Released | 2011 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 175 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 270 Nm | 371 Nm |
| Torque RPM | 2400 RPM | 1900 RPM |
| Engine Bore Size | 85 mm | 87.5 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 244 km/hour | 221 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 9.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1615 kg | 1670 kg |
| Vehicle Length | 4530 mm | 4640 mm |
| Vehicle Width | 1820 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2700 mm |
| Fuel Consumption Overall | 7.9 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
