2009 Audi RS6 vs. 2008 Mercedes-Benz GL
To start off, 2009 Audi RS6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Mercedes-Benz GL. In addition, the cost of maintenance, including insurance, on 2008 Mercedes-Benz GL would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 356 more horse power than 2008 Mercedes-Benz GL. (216 HP @ 4000 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 2008 Mercedes-Benz GL. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz GL weights approximately 431 kg more than 2009 Audi RS6.
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 Audi RS6 (650 Nm @ 1500 RPM) has 110 more torque (in Nm) than 2008 Mercedes-Benz GL. (540 Nm @ 1600 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Mercedes-Benz GL.
Compare all specifications:
| 2009 Audi RS6 | 2008 Mercedes-Benz GL | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | GL |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 2987 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 216 HP |
| Engine RPM | 6250 RPM | 4000 RPM |
| Torque | 650 Nm | 540 Nm |
| Torque RPM | 1500 RPM | 1600 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 280 km/hour | 210 km/hour |
| Acceleration 0-100mph | 4.6 seconds | 9.5 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2028 kg | 2459 kg |
| Vehicle Length | 4930 mm | 5090 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1470 mm | 1850 mm |
| Wheelbase Size | 2850 mm | 3080 mm |
| Fuel Consumption Overall | 14 L/100km | 10 L/100km |
| Fuel Tank Capacity | 80 L | 100 L |
