2009 Audi S8 vs. 1999 Mercedes-Benz GLK
To start off, 2009 Audi S8 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Mercedes-Benz GLK. In addition, the cost of maintenance, including insurance, on 1999 Mercedes-Benz GLK would be higher. At 5,204 cc (10 cylinders), 2009 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 275 more horse power than 1999 Mercedes-Benz GLK. (175 HP @ 4400 RPM). In normal driving conditions, 2009 Audi S8 should accelerate faster than 1999 Mercedes-Benz GLK. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz GLK weights approximately 1000 kg more than 2009 Audi S8.
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 S8 (540 Nm @ 3500 RPM) has 204 more torque (in Nm) than 1999 Mercedes-Benz GLK. (336 Nm @ 3600 RPM). This means 2009 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 1999 Mercedes-Benz GLK. 2009 Audi S8 has automatic transmission and 1999 Mercedes-Benz GLK has manual transmission. 1999 Mercedes-Benz GLK will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi S8 | 1999 Mercedes-Benz GLK | |
| Make | Audi | Mercedes-Benz |
| Model | S8 | GLK |
| Year Released | 2009 | 1999 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2994 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 175 HP |
| Engine RPM | 7000 RPM | 4400 RPM |
| Torque | 540 Nm | 336 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1175 kg | 2175 kg |
| Vehicle Length | 5070 mm | 4030 mm |
| Vehicle Width | 1900 mm | 1770 mm |
| Vehicle Height | 1430 mm | 1910 mm |
