2011 Mercedes-Benz C vs. 2003 Opel Signum
To start off, 2011 Mercedes-Benz C 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, 2003 Opel Signum (175 HP @ 4000 RPM) has 7 more horse power than 2011 Mercedes-Benz C. (168 HP @ 3000 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 2011 Mercedes-Benz C.
Because 2011 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 2011 Mercedes-Benz C. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2011 Mercedes-Benz C (400 Nm @ 1400 RPM) has 29 more torque (in Nm) than 2003 Opel Signum. (371 Nm @ 1900 RPM). This means 2011 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2011 Mercedes-Benz C | 2003 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2011 | 2003 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2143 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 175 HP |
| Engine RPM | 3000 RPM | 4000 RPM |
| Torque | 400 Nm | 371 Nm |
| Torque RPM | 1400 RPM | 1900 RPM |
| Fuel Type | Diesel | Diesel |
| Top Speed | 218 km/hour | 221 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | 7-speed shiftable automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4606 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1459 mm | 1470 mm |
| Wheelbase Size | 2760 mm | 2700 mm |
| Fuel Tank Capacity | 66 L | 60 L |
