2006 Audi A8 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Audi A8. In addition, the cost of maintenance, including insurance, on 2006 Audi A8 would be higher. At 6,208 cc (8 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (518 HP @ 6800 RPM) has 288 more horse power than 2006 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2006 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 504 kg more than 2009 Mercedes-Benz S.
Because 2006 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2006 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 Mercedes-Benz S (631 Nm @ 5200 RPM) has 180 more torque (in Nm) than 2006 Audi A8. (451 Nm @ 1400 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A8.
Compare all specifications:
| 2006 Audi A8 | 2009 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | S |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 518 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 451 Nm | 631 Nm |
| Torque RPM | 1400 RPM | 5200 RPM |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1326 kg |
| Vehicle Length | 5060 mm | 5210 mm |
| Vehicle Width | 1900 mm | 1880 mm |
| Vehicle Height | 1450 mm | 1480 mm |
| Wheelbase Size | 2950 mm | 3170 mm |
| Fuel Consumption Overall | 8.4 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 90 L | 90 L |
