2005 Audi A4 vs. 2009 Mercedes-Benz SL
To start off, 2009 Mercedes-Benz SL is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 5,980 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (661 HP @ 5400 RPM) has 438 more horse power than 2005 Audi A4. (223 HP @ 6500 RPM) In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 330 kg more than 2009 Mercedes-Benz SL.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2005 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 SL (1,000 Nm) has 700 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2009 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SL |
| Year Released | 2005 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 223 HP | 661 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 300 Nm | 1000 Nm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1695 kg | 1365 kg |
| Vehicle Length | 4550 mm | 5210 mm |
| Vehicle Height | 1430 mm | 1830 mm |
| Wheelbase Size | 2580 mm | 2570 mm |
| Fuel Consumption Overall | 11.8 L/100km | 6.6 L/100km |
| Fuel Tank Capacity | 66 L | 80 L |
