2005 BMW 325 vs. 2005 Opel Signum
To start off, both 2005 BMW 325 and 2005 Opel Signum were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,958 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (189 HP @ 6000 RPM) has 14 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2005 BMW 325 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 145 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, 2005 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 Opel Signum (370 Nm @ 1900 RPM) has 125 more torque (in Nm) than 2005 BMW 325. (245 Nm @ 3500 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 325.
Compare all specifications:
| 2005 BMW 325 | 2005 Opel Signum | |
| Make | BMW | Opel |
| Model | 325 | Signum |
| Year Released | 2005 | 2005 |
| Body Type | Convertible | 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 | 189 HP | 175 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 245 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 84 mm | 87.5 mm |
| Engine Stroke Size | 75 mm | 82 mm |
| Engine Compression Ratio | 11.0:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 235 km/hour | 221 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1525 kg | 1670 kg |
| Vehicle Length | 4270 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2620 mm |
| Fuel Consumption Overall | 9.2 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 63 L | 60 L |
