2005 Mercedes-Benz CL vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz CL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz CL would be higher. At 4,966 cc (8 cylinders), 2005 Mercedes-Benz CL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz CL (302 HP @ 4200 RPM) has 127 more horse power than 2008 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2005 Mercedes-Benz CL should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz CL weights approximately 160 kg more than 2008 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Mercedes-Benz CL (460 Nm) has 90 more torque (in Nm) than 2008 Opel Signum. (370 Nm). This means 2005 Mercedes-Benz CL will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum.
Compare all specifications:
| 2005 Mercedes-Benz CL | 2008 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | CL | Signum |
| Year Released | 2005 | 2008 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4966 cc | 2957 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 302 HP | 175 HP |
| Engine RPM | 4200 RPM | 4000 RPM |
| Torque | 460 Nm | 370 Nm |
| Engine Bore Size | 97 mm | 87.5 mm |
| Engine Stroke Size | 84 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1830 kg | 1670 kg |
| Vehicle Length | 5000 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2720 mm | 2840 mm |
| Fuel Consumption Overall | 12.5 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 88 L | 60 L |
