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 138 more horse power than 2007 Audi A4. (217 HP @ 5900 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 355 kg more than 2009 Mercedes-Benz SLK.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2007 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 Mercedes-Benz SLK (510 Nm @ 4000 RPM) has 210 more torque (in Nm) than 2007 Audi A4. (300 Nm @ 2200 RPM). This means 2009 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4. 2009 Mercedes-Benz SLK has automatic transmission and 2007 Audi A4 has manual transmission. 2007 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
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 | 1984 cc | 5439 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 217 HP | 355 HP |
| Engine RPM | 5900 RPM | 5750 RPM |
| Torque | 300 Nm | 510 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1240 kg |
| Vehicle Length | 4550 mm | 4110 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2440 mm |
| Fuel Consumption Overall | 9 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
