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 3,498 cc (6 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SLK (269 HP @ 6000 RPM) has 131 more horse power than 2005 Audi A6. (138 HP @ 4000 RPM) In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SLK weights approximately 580 kg more than 2005 Audi A6. 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, 2007 Mercedes-Benz SLK (350 Nm @ 2400 RPM) has 20 more torque (in Nm) than 2005 Audi A6. (330 Nm @ 1750 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2007 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | SLK |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1982 cc | 3498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 269 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 330 Nm | 350 Nm |
| Torque RPM | 1750 RPM | 2400 RPM |
| Engine Bore Size | 81 mm | 92.9 mm |
| Engine Stroke Size | 95.5 mm | 86 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1625 kg | 2205 kg |
| Vehicle Length | 4940 mm | 4090 mm |
| Vehicle Width | 1820 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2580 mm | 2410 mm |
| Fuel Consumption Overall | 5.7 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
