2008 Mercedes-Benz B vs. 2004 Opel Signum
To start off, 2008 Mercedes-Benz B is newer by 4 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 70 more horse power than 2008 Mercedes-Benz B. (138 HP @ 4200 RPM) In normal driving conditions, 2004 Opel Signum should accelerate faster than 2008 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 225 kg more than 2008 Mercedes-Benz B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Mercedes-Benz B | 2004 Opel Signum | |
| Make | Mercedes-Benz | Opel |
| Model | B | Signum |
| Year Released | 2008 | 2004 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 3175 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 208 HP |
| Engine RPM | 4200 RPM | 6200 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 1600 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 92 mm | 88 mm |
| Engine Compression Ratio | 18.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 200 km/hour | 237 km/hour |
| Acceleration 0-100mph | 7.6 seconds | 7.9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1370 kg | 1595 kg |
| Vehicle Length | 4280 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1610 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2740 mm |
| Fuel Consumption Overall | 5.8 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 54 L | 52 L |
