2009 Audi A4 vs. 2007 Mercedes-Benz SL
To start off, 2009 Audi A4 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 399 more horse power than 2009 Audi A4. (217 HP @ 6300 RPM) In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SL weights approximately 465 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 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 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, 2007 Mercedes-Benz SL (500 Nm @ 1500 RPM) has 200 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 3200 RPM). This means 2007 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2007 Mercedes-Benz SL has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2007 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SL |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2974 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 3 valves |
| Horse Power | 217 HP | 616 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 300 Nm | 500 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 243 km/hour | 295 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 4.7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1950 kg |
| Vehicle Length | 4550 mm | 4540 mm |
| Vehicle Width | 1780 mm | 1300 mm |
| Vehicle Height | 1430 mm | 1830 mm |
| Wheelbase Size | 2660 mm | 2570 mm |
| Fuel Consumption Overall | 9.9 L/100km | 18.6 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
