2009 Audi RS6 vs. 2007 Mercedes-Benz SLK
To start off, 2009 Audi RS6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SLK would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 344 more horse power than 2007 Mercedes-Benz SLK. (228 HP @ 6100 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 2007 Mercedes-Benz SLK.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 350 more torque (in Nm) than 2007 Mercedes-Benz SLK. (300 Nm @ 2700 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz SLK. 2009 Audi RS6 has automatic transmission and 2007 Mercedes-Benz SLK has manual transmission. 2007 Mercedes-Benz SLK will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi RS6 | 2007 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | RS6 | SLK |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 2996 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 228 HP |
| Engine RPM | 6250 RPM | 6100 RPM |
| Torque | 650 Nm | 300 Nm |
| Torque RPM | 1500 RPM | 2700 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4930 mm | 4090 mm |
| Vehicle Width | 1900 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2850 mm | 2440 mm |
| Fuel Consumption Overall | 6.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
