2005 Audi A6 vs. 2007 Mercedes-Benz SLK
To start off, 2007 Mercedes-Benz SLK is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 2,669 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (180 HP @ 3300 RPM) has 19 more horse power than 2007 Mercedes-Benz SLK. (161 HP @ 5300 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 2007 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 515 kg more than 2007 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz SLK is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Mercedes-Benz SLK. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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 A6 (380 Nm @ 1400 RPM) has 150 more torque (in Nm) than 2007 Mercedes-Benz SLK. (230 Nm @ 2500 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz SLK.
Compare all specifications:
| 2005 Audi A6 | 2007 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | SLK |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2669 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 180 HP | 161 HP |
| Engine RPM | 3300 RPM | 5300 RPM |
| Torque | 380 Nm | 230 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 90 mm |
| Engine Stroke Size | 83.1 mm | 78.7 mm |
| Engine Compression Ratio | 17.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1365 kg |
| Vehicle Length | 4920 mm | 4090 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2580 mm | 2410 mm |
| Fuel Consumption Overall | 7.1 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
