2007 Mercedes-Benz C vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz C. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz C would be higher. At 3,496 cc (6 cylinders), 2007 Mercedes-Benz C is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz C (268 HP @ 6000 RPM) has 93 more horse power than 2008 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2007 Mercedes-Benz C should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 115 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, 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, 2008 Opel Signum (370 Nm @ 1900 RPM) has 20 more torque (in Nm) than 2007 Mercedes-Benz C. (350 Nm @ 2400 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz C.
Compare all specifications:
| 2007 Mercedes-Benz C | 2008 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3496 cc | 2957 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 268 HP | 175 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 350 Nm | 370 Nm |
| Torque RPM | 2400 RPM | 1900 RPM |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 221 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 9.4 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1555 kg | 1670 kg |
| Vehicle Length | 4530 mm | 4640 mm |
| Vehicle Width | 1980 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2840 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 62 L | 60 L |
