2007 Audi A4 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 6,208 cc (8 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (518 HP @ 6800 RPM) has 263 more horse power than 2007 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz S weights approximately 48 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2007 Audi A4 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 Mercedes-Benz S (631 Nm @ 5200 RPM) has 301 more torque (in Nm) than 2007 Audi A4. (330 Nm @ 3250 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2009 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | S |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 518 HP |
| Engine RPM | 6500 RPM | 6800 RPM |
| Torque | 330 Nm | 631 Nm |
| Torque RPM | 3250 RPM | 5200 RPM |
| Engine Compression Ratio | 11.3:1 | 8.8:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1278 kg | 1326 kg |
| Vehicle Length | 4590 mm | 5210 mm |
| Vehicle Width | 1780 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1480 mm |
| Wheelbase Size | 2660 mm | 3170 mm |
| Fuel Consumption | 8.7 L/100km | 13.8 L/100km |
| Fuel Consumption City | 12.4 L/100km | 21.4 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
