2006 Audi A8 vs. 2009 Mercedes-Benz R
To start off, 2009 Mercedes-Benz R 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 3,697 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (276 HP @ 6000 RPM) has 55 more horse power than 2009 Mercedes-Benz R. (221 HP @ 3800 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2009 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz R weights approximately 528 kg more than 2006 Audi A8.
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, 2009 Mercedes-Benz R (510 Nm @ 2800 RPM) has 150 more torque (in Nm) than 2006 Audi A8. (360 Nm @ 3750 RPM). This means 2009 Mercedes-Benz R 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 R | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | R |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2987 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 276 HP | 221 HP |
| Engine RPM | 6000 RPM | 3800 RPM |
| Torque | 360 Nm | 510 Nm |
| Torque RPM | 3750 RPM | 2800 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 82.4 mm | 92 mm |
| Engine Compression Ratio | 11.0:1 | 17.7:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 222 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 8.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 2298 kg |
| Vehicle Length | 5060 mm | 5180 mm |
| Vehicle Width | 1900 mm | 1670 mm |
| Vehicle Height | 1450 mm | 1930 mm |
| Wheelbase Size | 2950 mm | 3220 mm |
| Fuel Consumption City | 17.3 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
