2007 Audi Q7 vs. 2005 Mercedes-Benz SL
To start off, 2007 Audi Q7 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 4,966 cc (8 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2007 Audi Q7 (344 HP @ 6800 RPM) has 42 more horse power than 2005 Mercedes-Benz SL. (302 HP @ 4200 RPM). In normal driving conditions, 2007 Audi Q7 should accelerate faster than 2005 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi Q7 weights approximately 396 kg more than 2005 Mercedes-Benz SL. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi Q7 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2007 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, 2005 Mercedes-Benz SL (470 Nm) has 30 more torque (in Nm) than 2007 Audi Q7. (440 Nm). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi Q7.
Compare all specifications:
| 2007 Audi Q7 | 2005 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | SL |
| Year Released | 2007 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4198 cc | 4966 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 344 HP | 302 HP |
| Engine RPM | 6800 RPM | 4200 RPM |
| Torque | 440 Nm | 470 Nm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2240 kg | 1844 kg |
| Vehicle Length | 5090 mm | 4540 mm |
| Vehicle Width | 1990 mm | 1820 mm |
| Vehicle Height | 1740 mm | 1300 mm |
| Wheelbase Size | 3010 mm | 2570 mm |
| Fuel Consumption Overall | 13.6 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 100 L | 80 L |
