2009 Audi A8 vs. 2006 Mercedes-Benz GL
To start off, 2009 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz GL. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz GL would be higher. At 5,998 cc, 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 6200 RPM) has 223 more horse power than 2006 Mercedes-Benz GL. (221 HP @ 3800 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2006 Mercedes-Benz GL. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz GL weights approximately 459 kg more than 2009 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 Audi A8 (580 Nm @ 4000 RPM) has 70 more torque (in Nm) than 2006 Mercedes-Benz GL. (510 Nm @ 1600 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz GL.
Compare all specifications:
| 2009 Audi A8 | 2006 Mercedes-Benz GL | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | GL |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2987 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 221 HP |
| Engine RPM | 6200 RPM | 3800 RPM |
| Torque | 580 Nm | 510 Nm |
| Torque RPM | 4000 RPM | 1600 RPM |
| Engine Compression Ratio | 11.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 245 km/hour | 210 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 9.5 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 | 1995 kg | 2454 kg |
| Vehicle Length | 5070 mm | 5090 mm |
| Vehicle Width | 1900 mm | 1930 mm |
| Vehicle Height | 1450 mm | 1850 mm |
| Wheelbase Size | 3080 mm | 3080 mm |
| Fuel Consumption Overall | 13.8 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 90 L | 100 L |
