2007 Audi A8 vs. 2005 Mercedes-Benz S
To start off, 2007 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S would be higher. At 5,980 cc (12 cylinders), 2005 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz S (603 HP) has 347 more horse power than 2007 Audi A8. (256 HP) In normal driving conditions, 2005 Mercedes-Benz S should accelerate faster than 2007 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz S weights approximately 610 kg more than 2007 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2007 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, 2005 Mercedes-Benz S (998 Nm @ 2000 RPM) has 668 more torque (in Nm) than 2007 Audi A8. (330 Nm @ 3250 RPM). This means 2005 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8.
Compare all specifications:
| 2007 Audi A8 | 2005 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | S |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3122 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 256 HP | 603 HP |
| Torque | 330 Nm | 998 Nm |
| Torque RPM | 3250 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 82.7 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 13.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 7.7 seconds | 4.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1610 kg | 2220 kg |
| Vehicle Length | 5060 mm | 5050 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1450 mm |
| Wheelbase Size | 2950 mm | 3090 mm |
| Fuel Consumption Overall | 11 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
