2006 Audi A8 vs. 2011 Mercedes-Benz GLK
To start off, 2011 Mercedes-Benz GLK is newer by 5 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 3,934 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (271 HP @ 3750 RPM) has 3 more horse power than 2011 Mercedes-Benz GLK. (268 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2011 Mercedes-Benz GLK. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 90 kg more than 2011 Mercedes-Benz GLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Audi A8 (650 Nm @ 1800 RPM) has 301 more torque (in Nm) than 2011 Mercedes-Benz GLK. (349 Nm @ 2400 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz GLK.
Compare all specifications:
| 2006 Audi A8 | 2011 Mercedes-Benz GLK | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | GLK |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 3500 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 268 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 349 Nm |
| Torque RPM | 1800 RPM | 2400 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1850 kg |
| Vehicle Length | 5190 mm | 4529 mm |
| Vehicle Width | 1900 mm | 1887 mm |
| Vehicle Height | 1460 mm | 1699 mm |
| Wheelbase Size | 3080 mm | 2756 mm |
| Fuel Tank Capacity | 90 L | 66 L |
