2004 Audi A8 vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 2,975 cc (6 cylinders), 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (217 HP @ 6300 RPM) has 79 more horse power than 2009 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 235 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, 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:
| 2004 Audi A8 | 2009 Mercedes-Benz B | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | B |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2975 cc | 1990 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 138 HP |
| Engine RPM | 6300 RPM | 4200 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 8200 RPM | 1600 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 245 km/hour | 200 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 9.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1670 kg | 1435 kg |
| Vehicle Length | 5060 mm | 4280 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1610 mm |
| Wheelbase Size | 2950 mm | 2780 mm |
| Fuel Consumption Overall | 9.6 L/100km | 5.6 L/100km |
| Fuel Tank Capacity | 42 L | 54 L |
