2009 Audi A4 vs. 2006 Mercedes-Benz SLK
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz SLK would be higher. At 2,967 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (230 HP @ 4000 RPM) has 69 more horse power than 2006 Mercedes-Benz SLK. (161 HP @ 5500 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 9 kg more than 2006 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 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 210 more torque (in Nm) than 2006 Mercedes-Benz SLK. (240 Nm @ 5000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz SLK. 2006 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. 2006 Mercedes-Benz SLK will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2006 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SLK |
| Year Released | 2009 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 1794 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 161 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 450 Nm | 240 Nm |
| Torque RPM | 1400 RPM | 5000 RPM |
| Engine Bore Size | 83 mm | 82 mm |
| Engine Stroke Size | 91.4 mm | 85 mm |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 242 km/hour | 231 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 8.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1794 kg | 1785 kg |
| Vehicle Length | 4580 mm | 4860 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2720 mm |
| Fuel Consumption Overall | 8 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 63 L | 65 L |
