2008 Audi S8 vs. 2011 Mercedes-Benz GLK
To start off, 2011 Mercedes-Benz GLK is newer by 3 year(s). Which means there will be less support and parts availability for 2008 Audi S8. In addition, the cost of maintenance, including insurance, on 2008 Audi S8 would be higher. At 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (450 HP @ 7000 RPM) has 182 more horse power than 2011 Mercedes-Benz GLK. (268 HP @ 6000 RPM). In normal driving conditions, 2008 Audi S8 should accelerate faster than 2011 Mercedes-Benz GLK. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz GLK weights approximately 660 kg more than 2008 Audi S8.
Because 2008 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2011 Mercedes-Benz GLK. In wet, icy, snow, or gravel driving conditions, 2008 Audi S8 will offer significantly more control. 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, 2008 Audi S8 (540 Nm @ 3500 RPM) has 191 more torque (in Nm) than 2011 Mercedes-Benz GLK. (349 Nm @ 2400 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz GLK.
Compare all specifications:
| 2008 Audi S8 | 2011 Mercedes-Benz GLK | |
| Make | Audi | Mercedes-Benz |
| Model | S8 | GLK |
| Year Released | 2008 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 3500 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 268 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 540 Nm | 349 Nm |
| Torque RPM | 3500 RPM | 2400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1160 kg | 1820 kg |
| Vehicle Length | 5070 mm | 4529 mm |
| Vehicle Width | 1900 mm | 1887 mm |
| Vehicle Height | 1430 mm | 1699 mm |
| Wheelbase Size | 2950 mm | 2756 mm |
| Fuel Consumption Highway | 12.4 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 90 L | 66 L |
