2005 Audi S4 vs. 2003 Mercedes-Benz SLK
To start off, 2005 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz SLK would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 179 more horse power than 2003 Mercedes-Benz SLK. (161 HP @ 5300 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2003 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 550 kg more than 2003 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 176 more torque (in Nm) than 2003 Mercedes-Benz SLK. (234 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Mercedes-Benz SLK.
Compare all specifications:
| 2005 Audi S4 | 2003 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | S4 | SLK |
| Year Released | 2005 | 2003 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1998 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 161 HP |
| Engine RPM | 6300 RPM | 5300 RPM |
| Torque | 410 Nm | 234 Nm |
| Engine Bore Size | 85 mm | 89.9 mm |
| Engine Stroke Size | 93 mm | 78.7 mm |
| Engine Compression Ratio | 11.0:1 | 9.5:1 |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1840 kg | 1290 kg |
| Vehicle Length | 4580 mm | 4020 mm |
| Vehicle Width | 1780 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1280 mm |
| Wheelbase Size | 2660 mm | 2410 mm |
| Fuel Tank Capacity | 63 L | 70 L |
