2005 Audi RS6 vs. 2006 Mercedes-Benz SLK
To start off, 2006 Mercedes-Benz SLK is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Audi RS6. In addition, the cost of maintenance, including insurance, on 2005 Audi RS6 would be higher. At 4,172 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 283 more horse power than 2006 Mercedes-Benz SLK. (161 HP @ 5300 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 2006 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 447 kg more than 2006 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 RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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 RS6 (560 Nm @ 1950 RPM) has 330 more torque (in Nm) than 2006 Mercedes-Benz SLK. (230 Nm @ 2500 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz SLK.
Compare all specifications:
| 2005 Audi RS6 | 2006 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | SLK |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 161 HP |
| Engine RPM | 5700 RPM | 5300 RPM |
| Torque | 560 Nm | 230 Nm |
| Torque RPM | 1950 RPM | 2500 RPM |
| Acceleration 0-100mph | 4.9 seconds | 7.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1815 kg | 1368 kg |
| Vehicle Length | 4860 mm | 4090 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2850 mm | 2410 mm |
| Fuel Consumption Overall | 14.6 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
