2008 Audi A6 vs. 2005 Mercedes-Benz SLK
To start off, 2008 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SLK would be higher. At 5,437 cc (8 cylinders), 2005 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SLK (349 HP @ 5750 RPM) has 171 more horse power than 2008 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2005 Mercedes-Benz SLK should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SLK weights approximately 150 kg more than 2008 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2008 Audi A6 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 Mercedes-Benz SLK (510 Nm @ 4000 RPM) has 130 more torque (in Nm) than 2008 Audi A6. (380 Nm @ 1400 RPM). This means 2005 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2005 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | SLK |
| Year Released | 2008 | 2005 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2696 cc | 5437 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 178 HP | 349 HP |
| Engine RPM | 3300 RPM | 5750 RPM |
| Torque | 380 Nm | 510 Nm |
| Torque RPM | 1400 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 97 mm |
| Engine Stroke Size | 83.1 mm | 92 mm |
| Engine Compression Ratio | 17.0:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 223 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.1 seconds | 4.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1695 kg | 1845 kg |
| Vehicle Length | 4940 mm | 4090 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1280 mm |
| Wheelbase Size | 2850 mm | 2410 mm |
| Fuel Consumption Overall | 8.3 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
