2005 Audi S8 vs. 2009 Mercedes-Benz GL
To start off, 2009 Mercedes-Benz GL is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 5,461 cc (8 cylinders), 2009 Mercedes-Benz GL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz GL (382 HP @ 6000 RPM) has 135 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2009 Mercedes-Benz GL should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz GL weights approximately 1060 kg more than 2005 Audi S8. 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, 2009 Mercedes-Benz GL (530 Nm @ 2800 RPM) has 80 more torque (in Nm) than 2005 Audi S8. (450 Nm @ 3400 RPM). This means 2009 Mercedes-Benz GL will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S8.
Compare all specifications:
| 2005 Audi S8 | 2009 Mercedes-Benz GL | |
| Make | Audi | Mercedes-Benz |
| Model | S8 | GL |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 5461 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 382 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 530 Nm |
| Torque RPM | 3400 RPM | 2800 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 2830 kg |
| Wheelbase Size | 2290 mm | 3080 mm |
| Fuel Tank Capacity | 90 L | 100 L |
