2005 Audi A8 vs. 2011 Mercedes-Benz SLK
To start off, 2011 Mercedes-Benz SLK is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,170 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (330 HP @ 6500 RPM) has 30 more horse power than 2011 Mercedes-Benz SLK. (300 HP @ 6500 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2011 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 350 kg more than 2011 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2011 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (430 Nm @ 3500 RPM) has 71 more torque (in Nm) than 2011 Mercedes-Benz SLK. (359 Nm @ 4900 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz SLK.
Compare all specifications:
| 2005 Audi A8 | 2011 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SLK |
| Year Released | 2005 | 2011 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 3500 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 300 HP |
| Engine RPM | 6500 RPM | 6500 RPM |
| Torque | 430 Nm | 359 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1855 kg | 1505 kg |
| Vehicle Length | 5060 mm | 4102 mm |
| Vehicle Width | 1900 mm | 1788 mm |
| Vehicle Height | 1450 mm | 1298 mm |
| Wheelbase Size | 2770 mm | 2431 mm |
| Fuel Tank Capacity | 90 L | 70 L |
