2008 BMW 118 vs. 2006 Opel Signum
To start off, 2008 BMW 118 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 34 more horse power than 2008 BMW 118. (141 HP @ 4000 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2008 BMW 118. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 285 kg more than 2008 BMW 118. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 118 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 2008 BMW 118. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 70 more torque (in Nm) than 2008 BMW 118. (300 Nm @ 2000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 118.
Compare all specifications:
| 2008 BMW 118 | 2006 Opel Signum | |
| Make | BMW | Opel |
| Model | 118 | Signum |
| Year Released | 2008 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 175 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 300 Nm | 370 Nm |
| Torque RPM | 2000 RPM | 1900 RPM |
| Engine Compression Ratio | 16.0:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 205 km/hour | 221 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1385 kg | 1670 kg |
| Vehicle Length | 4250 mm | 4640 mm |
| Vehicle Width | 1750 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2670 mm | 2840 mm |
| Fuel Consumption Overall | 4.7 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 51 L | 60 L |
