2007 Mercedes-Benz SL vs. 2005 Audi A3
To start off, 2007 Mercedes-Benz SL is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A3. In addition, the cost of maintenance, including insurance, on 2005 Audi A3 would be higher. At 5,439 cc (8 cylinders), 2007 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SL (469 HP @ 2650 RPM) has 222 more horse power than 2005 Audi A3. (247 HP @ 6300 RPM). In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 2005 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SL weights approximately 430 kg more than 2005 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2005 Audi A3 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, 2007 Mercedes-Benz SL (701 Nm @ 2650 RPM) has 371 more torque (in Nm) than 2005 Audi A3. (330 Nm @ 2800 RPM). This means 2007 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A3.
Compare all specifications:
| 2007 Mercedes-Benz SL | 2005 Audi A3 | |
| Make | Mercedes-Benz | Audi |
| Model | SL | A3 |
| Year Released | 2007 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5439 cc | 3196 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 469 HP | 247 HP |
| Engine RPM | 2650 RPM | 6300 RPM |
| Torque | 701 Nm | 330 Nm |
| Torque RPM | 2650 RPM | 2800 RPM |
| Engine Bore Size | 97 mm | 84.1 mm |
| Engine Stroke Size | 92 mm | 95.9 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 4.7 seconds | 6.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1955 kg | 1525 kg |
| Vehicle Length | 4540 mm | 4210 mm |
| Vehicle Width | 1820 mm | 1770 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2570 mm | 2760 mm |
| Fuel Consumption Overall | 14.4 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
