2005 Audi A8 vs. 2006 Mercedes-Benz R
To start off, 2006 Mercedes-Benz R is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 6,208 cc (8 cylinders), 2006 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz R (504 HP @ 6800 RPM) has 54 more horse power than 2005 Audi A8. (450 HP @ 6300 RPM) In normal driving conditions, 2006 Mercedes-Benz R should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz R weights approximately 230 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2006 Mercedes-Benz R (630 Nm) has 70 more torque (in Nm) than 2005 Audi A8. (560 Nm). This means 2006 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2006 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | R |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 6208 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 504 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 560 Nm | 630 Nm |
| Engine Bore Size | 84.1 mm | 102.2 mm |
| Engine Stroke Size | 90 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2145 kg | 2375 kg |
| Vehicle Length | 5200 mm | 5160 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1460 mm | 1640 mm |
| Wheelbase Size | 3080 mm | 3220 mm |
| Fuel Consumption Overall | 13.8 L/100km | 16.3 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
