2007 Audi RS4 vs. 2005 Mercedes-Benz SL
To start off, 2007 Audi RS4 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 5,980 cc (12 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (604 HP @ 4200 RPM) has 184 more horse power than 2007 Audi RS4. (420 HP @ 8205 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2007 Audi RS4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 360 kg more than 2007 Audi RS4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi RS4 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 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, 2005 Mercedes-Benz SL (1,001 Nm) has 571 more torque (in Nm) than 2007 Audi RS4. (430 Nm). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi RS4.
Compare all specifications:
| 2007 Audi RS4 | 2005 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | RS4 | SL |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 5980 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 420 HP | 604 HP |
| Engine RPM | 8205 RPM | 4200 RPM |
| Torque | 430 Nm | 1001 Nm |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1700 kg | 2060 kg |
| Vehicle Width | 1820 mm | 1820 mm |
