2005 Mercedes-Benz C vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz C. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz C would be higher. At 2,685 cc (6 cylinders), 2005 Mercedes-Benz C is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz C (160 HP @ 4200 RPM) has 7 more horse power than 2008 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 2005 Mercedes-Benz C should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz C weights approximately 43 kg more than 2008 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mercedes-Benz C 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 Mercedes-Benz C. However, in wet, icy, snow, or gravel driving conditions, 2008 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 Mercedes-Benz C (240 Nm) has 20 more torque (in Nm) than 2008 Opel Signum. (220 Nm). This means 2005 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum.
Compare all specifications:
| 2005 Mercedes-Benz C | 2008 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2005 | 2008 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2685 cc | 2197 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 160 HP | 153 HP |
| Engine RPM | 4200 RPM | 5600 RPM |
| Torque | 240 Nm | 220 Nm |
| Engine Compression Ratio | 10.5:1 | 12.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1578 kg | 1535 kg |
| Vehicle Length | 4550 mm | 4640 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2840 mm |
| Fuel Consumption Highway | 9.8 L/100km | 7.2 L/100km |
| Fuel Consumption City | 12.4 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 62 L | 60 L |
