2006 Mercedes-Benz A vs. 2003 Opel Signum
To start off, 2006 Mercedes-Benz A is newer by 3 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 2,958 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz A (190 HP @ 5000 RPM) has 15 more horse power than 2003 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2006 Mercedes-Benz A should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 395 kg more than 2006 Mercedes-Benz A.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2003 Opel Signum (370 Nm @ 1900 RPM) has 90 more torque (in Nm) than 2006 Mercedes-Benz A. (280 Nm @ 1800 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz A.
Compare all specifications:
| 2006 Mercedes-Benz A | 2003 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | A | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2034 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 190 HP | 175 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 280 Nm | 370 Nm |
| Torque RPM | 1800 RPM | 1900 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 94 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 18.5:1 |
| Top Speed | 227 km/hour | 221 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1275 kg | 1670 kg |
| Vehicle Length | 3840 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1600 mm | 1470 mm |
| Wheelbase Size | 2570 mm | 2700 mm |
| Fuel Consumption Overall | 7.9 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 54 L | 60 L |
