2008 Audi A4 vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 2,034 cc (4 cylinders), 2009 Mercedes-Benz B is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (128 HP @ 5700 RPM) has 14 more horse power than 2009 Mercedes-Benz B. (114 HP @ 5750 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz B weights approximately 105 kg more than 2008 Audi A4.
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, 2008 Audi A4 (195 Nm @ 3300 RPM) has 30 more torque (in Nm) than 2009 Mercedes-Benz B. (165 Nm @ 3500 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B.
Compare all specifications:
| 2008 Audi A4 | 2009 Mercedes-Benz B | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | B |
| Year Released | 2008 | 2009 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 2034 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 128 HP | 114 HP |
| Engine RPM | 5700 RPM | 5750 RPM |
| Torque | 195 Nm | 165 Nm |
| Torque RPM | 3300 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 83.1 mm |
| Engine Stroke Size | 92.8 mm | 94 mm |
| Engine Compression Ratio | 10.3:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 10.1 seconds | 12.4 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 | 1365 kg | 1470 kg |
| Vehicle Length | 4550 mm | 4280 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1630 mm |
| Wheelbase Size | 2660 mm | 2780 mm |
| Fuel Consumption Overall | 8 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 70 L | 54 L |
