2007 Audi A4 vs. 2009 Mercedes-Benz SLK
To start off, 2009 Mercedes-Benz SLK is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 5,439 cc (8 cylinders), 2009 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SLK (355 HP @ 5750 RPM) has 100 more horse power than 2007 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2009 Mercedes-Benz SLK should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 640 kg more than 2009 Mercedes-Benz SLK.
Because 2009 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 2009 Mercedes-Benz SLK. However, in wet, icy, snow, or gravel driving conditions, 2007 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 Mercedes-Benz SLK (510 Nm @ 4000 RPM) has 180 more torque (in Nm) than 2007 Audi A4. (330 Nm @ 3250 RPM). This means 2009 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2009 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SLK |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 255 HP | 355 HP |
| Engine RPM | 6500 RPM | 5750 RPM |
| Torque | 330 Nm | 510 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 96 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1240 kg |
| Vehicle Length | 4590 mm | 4110 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2440 mm |
| Fuel Consumption | 8.3 L/100km | 10.7 L/100km |
| Fuel Consumption City | 11.4 L/100km | 16.8 L/100km |
| Fuel Consumption Overall | 10 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
