2009 Audi Q7 vs. 2005 Mercedes-Benz SLK
To start off, 2009 Audi Q7 is newer by 4 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 4,132 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 53 more horse power than 2005 Mercedes-Benz SLK. (269 HP @ 4200 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 2005 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 1015 kg more than 2005 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi Q7 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, 2009 Audi Q7 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 Q7 (760 Nm) has 410 more torque (in Nm) than 2005 Mercedes-Benz SLK. (350 Nm). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz SLK.
Compare all specifications:
| 2009 Audi Q7 | 2005 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | SLK |
| Year Released | 2009 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4132 cc | 3491 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 269 HP |
| Engine RPM | 3750 RPM | 4200 RPM |
| Torque | 760 Nm | 350 Nm |
| Engine Bore Size | 83 mm | 93 mm |
| Engine Stroke Size | 95.5 mm | 86 mm |
| Engine Compression Ratio | 16.5:1 | 10.7:1 |
| Drive Type | 4WD | Rear |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2420 kg | 1405 kg |
| Vehicle Length | 5090 mm | 4090 mm |
| Vehicle Width | 1990 mm | 1790 mm |
| Vehicle Height | 1780 mm | 1300 mm |
| Wheelbase Size | 3010 mm | 2440 mm |
| Fuel Consumption Overall | 11.1 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 100 L | 70 L |
