2005 Audi S4 vs. 2009 Mercedes-Benz CLS
To start off, 2009 Mercedes-Benz CLS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 6,207 cc (8 cylinders), 2009 Mercedes-Benz CLS is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz CLS (507 HP @ 6800 RPM) has 167 more horse power than 2005 Audi S4. (340 HP @ 6300 RPM) In normal driving conditions, 2009 Mercedes-Benz CLS should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz CLS weights approximately 65 kg more than 2005 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 Mercedes-Benz CLS (630 Nm) has 220 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2009 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2009 Mercedes-Benz CLS | |
| Make | Audi | Mercedes-Benz |
| Model | S4 | CLS |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 6207 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 507 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 410 Nm | 630 Nm |
| Engine Bore Size | 85 mm | 102.2 mm |
| Engine Stroke Size | 93 mm | 94.6 mm |
| Engine Compression Ratio | 11.0:1 | 11.3:1 |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1905 kg |
| Vehicle Length | 4580 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1880 mm |
| Vehicle Height | 1400 mm | 1400 mm |
| Wheelbase Size | 2660 mm | 2860 mm |
| Fuel Consumption Overall | 11.8 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
