2009 Audi A4 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Audi A4. In addition, the cost of maintenance, including insurance, on 2009 Audi A4 would be higher. At 5,980 cc (12 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (605 HP) has 447 more horse power than 2009 Audi A4. (158 HP) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2010 Mercedes-Benz SL weights approximately 1420 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 Mercedes-Benz SL is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2010 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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 SL (1,000 Nm) has 749 more torque (in Nm) than 2009 Audi A4. (251 Nm). This means 2010 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2010 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SL |
| Year Released | 2009 | 2010 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 5980 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 158 HP | 605 HP |
| Torque | 251 Nm | 1000 Nm |
| Engine Bore Size | 82.5 mm | 82.6 mm |
| Engine Stroke Size | 84.1 mm | 93 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1410 kg | 2830 kg |
| Vehicle Length | 4710 mm | 4540 mm |
| Vehicle Width | 1830 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2810 mm | 2570 mm |
| Fuel Consumption Overall | 7.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 65 L | 80 L |
