2003 Audi A6 vs. 2007 Mercedes-Benz SLK
To start off, 2007 Mercedes-Benz SLK is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 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 43 more horse power than 2003 Audi A6. (226 HP @ 5800 RPM) In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2003 Audi A6.
Because 2003 Audi A6 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, 2003 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, 2007 Mercedes-Benz SLK (350 Nm @ 2400 RPM) has 40 more torque (in Nm) than 2003 Audi A6. (310 Nm @ 1700 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2007 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | SLK |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 226 HP | 269 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 310 Nm | 350 Nm |
| Torque RPM | 1700 RPM | 2400 RPM |
| Engine Bore Size | 81 mm | 92.9 mm |
| Engine Stroke Size | 86.4 mm | 86 mm |
| Engine Compression Ratio | 9.3:1 | 10.7:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4800 mm | 4090 mm |
| Vehicle Width | 1820 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 2770 mm | 2440 mm |
| Fuel Consumption | 8.8 L/100km | 9.4 L/100km |
| Fuel Consumption City | 16.6 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
