2007 Mercedes-Benz B vs. 2005 Opel Astra
To start off, 2007 Mercedes-Benz B is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 1,991 cc (4 cylinders), 2007 Mercedes-Benz B is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz B (138 HP @ 4200 RPM) has 34 more horse power than 2005 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2007 Mercedes-Benz B should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz B weights approximately 225 kg more than 2005 Opel Astra. 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, 2007 Mercedes-Benz B (300 Nm @ 1600 RPM) has 150 more torque (in Nm) than 2005 Opel Astra. (150 Nm @ 3900 RPM). This means 2007 Mercedes-Benz B will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2007 Mercedes-Benz B | 2005 Opel Astra | |
| Make | Mercedes-Benz | Opel |
| Model | B | Astra |
| Year Released | 2007 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 1597 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 104 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 300 Nm | 150 Nm |
| Torque RPM | 1600 RPM | 3900 RPM |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 195 km/hour | 185 km/hour |
| Acceleration 0-100mph | 7.6 seconds | 12.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1435 kg | 1210 kg |
| Vehicle Length | 4280 mm | 4260 mm |
| Vehicle Width | 1610 mm | 1760 mm |
| Vehicle Height | 1780 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2640 mm |
| Fuel Consumption Overall | 5.6 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 54 L | 52 L |
