2009 Audi S4 vs. 2007 Mercedes-Benz CLS
To start off, 2009 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz CLS. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz CLS would be higher. At 5,439 cc (8 cylinders), 2007 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz CLS (469 HP @ 6100 RPM) has 129 more horse power than 2009 Audi S4. (340 HP @ 6800 RPM) In normal driving conditions, 2007 Mercedes-Benz CLS should accelerate faster than 2009 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz CLS weights approximately 990 kg more than 2009 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz CLS. In wet, icy, snow, or gravel driving conditions, 2009 Audi S4 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 CLS (700 Nm @ 2650 RPM) has 290 more torque (in Nm) than 2009 Audi S4. (410 Nm @ 3500 RPM). This means 2007 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2009 Audi S4 | 2007 Mercedes-Benz CLS | |
| Make | Audi | Mercedes-Benz |
| Model | S4 | CLS |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 5439 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 340 HP | 469 HP |
| Engine RPM | 6800 RPM | 6100 RPM |
| Torque | 410 Nm | 700 Nm |
| Torque RPM | 3500 RPM | 2650 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1920 kg |
| Vehicle Length | 4580 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1880 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2860 mm |
| Fuel Consumption Highway | 11.2 L/100km | 10.7 L/100km |
| Fuel Consumption City | 16.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
