2007 Alfa Romeo 156 vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2007 Alfa Romeo 156 would be higher. At 2,492 cc (6 cylinders), 2007 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 156 (190 HP @ 6300 RPM) has 96 more horse power than 2009 Mercedes-Benz B. (94 HP @ 5200 RPM). In normal driving conditions, 2007 Alfa Romeo 156 should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 156 weights approximately 105 kg more than 2009 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, 2007 Alfa Romeo 156 (218 Nm @ 5000 RPM) has 78 more torque (in Nm) than 2009 Mercedes-Benz B. (140 Nm @ 3500 RPM). This means 2007 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2009 Mercedes-Benz B | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 156 | B |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1498 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 190 HP | 94 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 218 Nm | 140 Nm |
| Torque RPM | 5000 RPM | 3500 RPM |
| Engine Bore Size | 88 mm | 83 mm |
| Engine Stroke Size | 68.3 mm | 69.2 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 230 km/hour | 174 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 13.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1405 kg | 1300 kg |
| Vehicle Length | 4450 mm | 4280 mm |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1440 mm | 1610 mm |
| Wheelbase Size | 2600 mm | 2780 mm |
| Fuel Consumption Overall | 11.8 L/100km | 6.8 L/100km |
| Fuel Tank Capacity | 63 L | 54 L |
