2005 Audi RS4 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi RS4. In addition, the cost of maintenance, including insurance, on 2005 Audi RS4 would be higher. At 5,461 cc (8 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (382 HP @ 6000 RPM) has 6 more horse power than 2005 Audi RS4. (376 HP @ 6300 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2005 Audi RS4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz S weights approximately 1247 kg more than 2005 Audi RS4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS4 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, 2005 Audi RS4 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 (530 Nm @ 2800 RPM) has 81 more torque (in Nm) than 2005 Audi RS4. (449 Nm @ 2500 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi RS4. 2009 Mercedes-Benz S has automatic transmission and 2005 Audi RS4 has manual transmission. 2005 Audi RS4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi RS4 | 2009 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | RS4 | S |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 5461 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 376 HP | 382 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 449 Nm | 530 Nm |
| Torque RPM | 2500 RPM | 2800 RPM |
| Engine Compression Ratio | 12.5:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 245 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 5.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 2832 kg |
| Vehicle Length | 4600 mm | 5080 mm |
| Vehicle Width | 1820 mm | 1480 mm |
| Vehicle Height | 1420 mm | 1880 mm |
| Wheelbase Size | 2610 mm | 3040 mm |
| Fuel Consumption Overall | 13.7 L/100km | 11.9 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
