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 3,500 cc (6 cylinders), 2011 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz SLK (300 HP @ 6500 RPM) has 78 more horse power than 2009 Audi A4. (222 HP @ 4000 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. 2009 Audi A4 weights approximately 105 kg more than 2011 Mercedes-Benz SLK.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2011 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2009 Audi A4 (450 Nm @ 1400 RPM) has 91 more torque (in Nm) than 2011 Mercedes-Benz SLK. (359 Nm @ 4900 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz SLK. 2011 Mercedes-Benz SLK 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. 2011 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
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 | 2965 cc | 3500 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 300 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 450 Nm | 359 Nm |
| Torque RPM | 1400 RPM | 4900 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1505 kg |
| Vehicle Length | 4550 mm | 4102 mm |
| Vehicle Width | 1780 mm | 1788 mm |
| Vehicle Height | 1430 mm | 1298 mm |
| Wheelbase Size | 2660 mm | 2431 mm |
| Fuel Tank Capacity | 70 L | 70 L |
