2009 Audi S4 vs. 2010 Mercedes-Benz S
To start off, 2010 Mercedes-Benz S is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Audi S4. In addition, the cost of maintenance, including insurance, on 2009 Audi S4 would be higher. At 5,500 cc (8 cylinders), 2010 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz S (382 HP @ 6000 RPM) has 42 more horse power than 2009 Audi S4. (340 HP @ 6800 RPM) In normal driving conditions, 2010 Mercedes-Benz S should accelerate faster than 2009 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2010 Mercedes-Benz S weights approximately 1161 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.
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, 2010 Mercedes-Benz S (530 Nm @ 2800 RPM) has 120 more torque (in Nm) than 2009 Audi S4. (410 Nm @ 3500 RPM). This means 2010 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2009 Audi S4 | 2010 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | S4 | S |
| Year Released | 2009 | 2010 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 5500 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 382 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 410 Nm | 530 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 2091 kg |
| Vehicle Length | 4580 mm | 5245 mm |
| Vehicle Width | 1780 mm | 1872 mm |
| Vehicle Height | 1400 mm | 1473 mm |
| Wheelbase Size | 2660 mm | 3165 mm |
| Fuel Consumption | 11.2 L/100km | 11.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
