2007 Audi A3 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A3. In addition, the cost of maintenance, including insurance, on 2007 Audi A3 would be higher. At 5,513 cc (12 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (510 HP @ 5000 RPM) has 362 more horse power than 2007 Audi A3. (148 HP @ 6000 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A3 weights approximately 120 kg more than 2009 Mercedes-Benz S.
Because 2009 Mercedes-Benz S 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 2009 Mercedes-Benz S. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2009 Mercedes-Benz S (830 Nm @ 1800 RPM) has 630 more torque (in Nm) than 2007 Audi A3. (200 Nm @ 3500 RPM). This means 2009 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3.
Compare all specifications:
| 2007 Audi A3 | 2009 Mercedes-Benz S | |
| Make | Audi | Mercedes-Benz |
| Model | A3 | S |
| Year Released | 2007 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 5513 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 148 HP | 510 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 200 Nm | 830 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Compression Ratio | 11.5:1 | 9.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1345 kg | 1225 kg |
| Vehicle Length | 4290 mm | 5210 mm |
| Vehicle Width | 1770 mm | 1880 mm |
| Vehicle Height | 1430 mm | 1480 mm |
| Wheelbase Size | 2580 mm | 3170 mm |
| Fuel Consumption Overall | 7.8 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
