2007 Audi S3 vs. 2005 Mercedes-Benz SLK
To start off, 2007 Audi S3 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SLK would be higher. At 3,491 cc (6 cylinders), 2005 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SLK (269 HP @ 4200 RPM) has 7 more horse power than 2007 Audi S3. (262 HP @ 6000 RPM) In normal driving conditions, 2005 Mercedes-Benz SLK should accelerate faster than 2007 Audi S3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S3 weights approximately 50 kg more than 2005 Mercedes-Benz SLK.
Because 2007 Audi S3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2007 Audi S3 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, both vehicles can yield 350 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2007 Audi S3 | 2005 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | S3 | SLK |
| Year Released | 2007 | 2005 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 3491 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 262 HP | 269 HP |
| Engine RPM | 6000 RPM | 4200 RPM |
| Torque | 350 Nm | 350 Nm |
| Engine Bore Size | 82.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1455 kg | 1405 kg |
| Vehicle Length | 4210 mm | 4090 mm |
| Vehicle Width | 1770 mm | 1790 mm |
| Vehicle Height | 1410 mm | 1300 mm |
| Wheelbase Size | 2580 mm | 2440 mm |
| Fuel Consumption Overall | 9.1 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
