2003 Opel Signum vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 7 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 5,513 cc (12 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (510 HP @ 5000 RPM) has 358 more horse power than 2003 Opel Signum. (152 HP @ 5600 RPM) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 340 kg more than 2010 Mercedes-Benz SL.
Because 2010 Mercedes-Benz SL 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 2010 Mercedes-Benz SL. 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, 2010 Mercedes-Benz SL (830 Nm @ 1900 RPM) has 610 more torque (in Nm) than 2003 Opel Signum. (220 Nm @ 3800 RPM). This means 2010 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2010 Mercedes-Benz SL | |
| Make | Opel | Mercedes-Benz |
| Model | Signum | SL |
| Year Released | 2003 | 2010 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 5513 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 152 HP | 510 HP |
| Engine RPM | 5600 RPM | 5000 RPM |
| Torque | 220 Nm | 830 Nm |
| Torque RPM | 3800 RPM | 1900 RPM |
| Engine Bore Size | 86 mm | 82 mm |
| Engine Stroke Size | 94.6 mm | 87 mm |
| Engine Compression Ratio | 12.0:1 | 9.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1565 kg | 1225 kg |
| Vehicle Length | 4640 mm | 4540 mm |
| Vehicle Width | 1800 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2840 mm | 2570 mm |
| Fuel Consumption | 7.2 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 9.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 60 L | 80 L |
