2005 Alfa Romeo 156 vs. 2007 Mercedes-Benz B
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 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 1,991 cc (4 cylinders), 2007 Mercedes-Benz B is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (173 HP @ 4000 RPM) has 35 more horse power than 2007 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2007 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz B weights approximately 124 kg more than 2005 Alfa Romeo 156.
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 113 more torque (in Nm) than 2005 Alfa Romeo 156. (187 Nm @ 3500 RPM). This means 2007 Mercedes-Benz B will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2007 Mercedes-Benz B has automatic transmission and 2005 Alfa Romeo 156 has manual transmission. 2005 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz B will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2007 Mercedes-Benz B | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 156 | B |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1969 cc | 1991 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 138 HP |
| Engine RPM | 4000 RPM | 4200 RPM |
| Torque | 187 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 91 mm | 92 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1250 kg | 1374 kg |
| Wheelbase Size | 2550 mm | 2780 mm |
| Fuel Tank Capacity | 63 L | 54 L |
