2005 Audi A4 vs. 2007 Mercedes-Benz SLK
To start off, 2007 Mercedes-Benz SLK is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 2,496 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (170 HP @ 4000 RPM) has 9 more horse power than 2007 Mercedes-Benz SLK. (161 HP @ 5300 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2007 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 225 kg more than 2007 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi A4 (370 Nm @ 1500 RPM) has 140 more torque (in Nm) than 2007 Mercedes-Benz SLK. (230 Nm @ 2500 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz SLK.
Compare all specifications:
| 2005 Audi A4 | 2007 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | SLK |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 161 HP |
| Engine RPM | 4000 RPM | 5300 RPM |
| Torque | 370 Nm | 230 Nm |
| Torque RPM | 1500 RPM | 2500 RPM |
| Engine Compression Ratio | 18.5:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 8.4 seconds | 7.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1365 kg |
| Vehicle Length | 4550 mm | 4090 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2660 mm | 2410 mm |
| Fuel Consumption Overall | 7.8 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
