2009 Audi A4 vs. 2011 Mercedes-Benz SLK
To start off, 2011 Mercedes-Benz SLK is newer by 2 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 1,968 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz SLK (182 HP @ 5250 RPM) has 41 more horse power than 2009 Audi A4. (141 HP @ 4200 RPM) In normal driving conditions, 2011 Mercedes-Benz SLK should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz SLK weights approximately 505 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 2011 Mercedes-Benz SLK 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 2011 Mercedes-Benz SLK. 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, 2009 Audi A4 (320 Nm @ 1750 RPM) has 70 more torque (in Nm) than 2011 Mercedes-Benz SLK. (250 Nm @ 1800 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz SLK.
Compare all specifications:
| 2009 Audi A4 | 2011 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SLK |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 182 HP |
| Engine RPM | 4200 RPM | 5250 RPM |
| Torque | 320 Nm | 250 Nm |
| Torque RPM | 1750 RPM | 1800 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 205 km/hour | 240 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 930 kg | 1435 kg |
| Vehicle Length | 4710 mm | 4135 mm |
| Vehicle Width | 2010 mm | 1816 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2810 mm | 2431 mm |
| Fuel Tank Capacity | 65 L | 60 L |
