2003 Opel Signum vs. 2007 Mercedes-Benz C
To start off, 2007 Mercedes-Benz C is newer by 4 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, 2007 Mercedes-Benz C (201 HP @ 6200 RPM) has 26 more horse power than 2003 Opel Signum. (175 HP @ 5500 RPM) In normal driving conditions, 2007 Mercedes-Benz C should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 45 kg more than 2007 Mercedes-Benz C.
Because 2007 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 2007 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 125 more torque (in Nm) than 2007 Mercedes-Benz C. (245 Nm @ 2900 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz C.
Compare all specifications:
| 2003 Opel Signum | 2007 Mercedes-Benz C | |
| Make | Opel | Mercedes-Benz |
| Model | Signum | C |
| Year Released | 2003 | 2007 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 201 HP |
| Engine RPM | 5500 RPM | 6200 RPM |
| Torque | 370 Nm | 245 Nm |
| Torque RPM | 1900 RPM | 2900 RPM |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1575 kg | 1530 kg |
| Vehicle Length | 4640 mm | 4530 mm |
| Vehicle Width | 1800 mm | 1730 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2720 mm |
