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 2,146 cc (4 cylinders), 2009 Mercedes-Benz C is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz C (168 HP @ 3800 RPM) has 69 more horse power than 2005 Opel Signum. (99 HP @ 3120 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. 2009 Mercedes-Benz C weights approximately 1235 kg more than 2005 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 Mercedes-Benz C. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 2009 Mercedes-Benz C (400 Nm @ 2000 RPM) has 170 more torque (in Nm) than 2005 Opel Signum. (230 Nm @ 1500 RPM). This means 2009 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum. 2009 Mercedes-Benz C has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz C will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Mercedes-Benz C | 2005 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | C | Signum |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2146 cc | 1993 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 99 HP |
| Engine RPM | 3800 RPM | 3120 RPM |
| Torque | 400 Nm | 230 Nm |
| Torque RPM | 2000 RPM | 1500 RPM |
| Engine Bore Size | 88 mm | 84 mm |
| Engine Stroke Size | 88.3 mm | 90 mm |
| Engine Compression Ratio | 17.5:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2830 kg | 1595 kg |
| Vehicle Length | 4590 mm | 4640 mm |
| Vehicle Width | 1450 mm | 1800 mm |
| Vehicle Height | 1780 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2740 mm |
| Fuel Consumption Overall | 9.9 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 62 L | 60 L |
