2009 Audi A3 vs. 2007 Mercedes-Benz SL
To start off, 2009 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SL would be higher. At 5,980 cc (12 cylinders), 2007 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SL (616 HP @ 4800 RPM) has 416 more horse power than 2009 Audi A3. (200 HP @ 5100 RPM) In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 2009 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SL weights approximately 920 kg more than 2009 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A3, 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, 2007 Mercedes-Benz SL (500 Nm @ 1500 RPM) has 219 more torque (in Nm) than 2009 Audi A3. (281 Nm @ 1800 RPM). This means 2007 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A3.
Compare all specifications:
| 2009 Audi A3 | 2007 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A3 | SL |
| Year Released | 2009 | 2007 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 5980 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 200 HP | 616 HP |
| Engine RPM | 5100 RPM | 4800 RPM |
| Torque | 281 Nm | 500 Nm |
| Torque RPM | 1800 RPM | 1500 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1030 kg | 1950 kg |
| Vehicle Length | 4290 mm | 4540 mm |
| Vehicle Width | 1970 mm | 1300 mm |
| Vehicle Height | 1430 mm | 1830 mm |
| Wheelbase Size | 2580 mm | 2570 mm |
| Fuel Consumption | 8.4 L/100km | 12.4 L/100km |
| Fuel Consumption City | 10.7 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 18.6 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
