2009 Mercedes-Benz C vs. 2005 Opel Signum
To start off, 2009 Mercedes-Benz C is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 3,174 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz C (228 HP @ 6000 RPM) has 20 more horse power than 2005 Opel Signum. (208 HP @ 6000 RPM). In normal driving conditions, 2009 Mercedes-Benz C should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 285 kg more than 2009 Mercedes-Benz C.
Because 2009 Mercedes-Benz C is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz C 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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2009 Mercedes-Benz C | 2005 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2009 | 2005 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 3174 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 228 HP | 208 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 2700 RPM | 4000 RPM |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1325 kg | 1610 kg |
| Vehicle Length | 4640 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 66 L | 60 L |
