2007 Mercedes-Benz C vs. 2004 Opel Signum
To start off, 2007 Mercedes-Benz C is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 3,175 cc (6 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (208 HP @ 6200 RPM) has 60 more horse power than 2007 Mercedes-Benz C. (148 HP @ 4200 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2007 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 55 kg more than 2007 Mercedes-Benz C. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 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, 2007 Mercedes-Benz C (340 Nm @ 1800 RPM) has 40 more torque (in Nm) than 2004 Opel Signum. (300 Nm @ 4000 RPM). This means 2007 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2007 Mercedes-Benz C | 2004 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2148 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 208 HP |
| Engine RPM | 4200 RPM | 6200 RPM |
| Torque | 340 Nm | 300 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 219 km/hour | 237 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 7.9 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 | 1540 kg | 1595 kg |
| Vehicle Length | 4530 mm | 4640 mm |
| Vehicle Width | 1430 mm | 1800 mm |
| Vehicle Height | 1730 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2740 mm |
| Fuel Consumption Overall | 6.1 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 62 L | 52 L |
