2009 Audi A8 vs. 2005 Mercedes-Benz A
To start off, 2009 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz A. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz A would be higher. At 3,123 cc (6 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (256 HP) has 155 more horse power than 2005 Mercedes-Benz A. (101 HP). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2005 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 15 kg more than 2005 Mercedes-Benz A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz A. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 will offer significantly more control. 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, 2009 Audi A8 (330 Nm @ 3250 RPM) has 180 more torque (in Nm) than 2005 Mercedes-Benz A. (150 Nm @ 4000 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz A.
Compare all specifications:
| 2009 Audi A8 | 2005 Mercedes-Benz A | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | A |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 256 HP | 101 HP |
| Torque | 330 Nm | 150 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Compression Ratio | 13.0:1 | 11.0:1 |
| Top Speed | 245 km/hour | 175 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 11.1 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1160 kg | 1145 kg |
| Vehicle Length | 5060 mm | 3780 mm |
| Vehicle Width | 1900 mm | 1730 mm |
| Vehicle Height | 1450 mm | 1600 mm |
| Wheelbase Size | 2950 mm | 2720 mm |
| Fuel Consumption Overall | 11 L/100km | 7.2 L/100km |
| Fuel Tank Capacity | 90 L | 54 L |
