2008 Audi A6 vs. 2005 Audi S4
To start off, 2008 Audi A6 is newer by 3 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 5,202 cc (10 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (429 HP @ 6800 RPM) has 89 more horse power than 2005 Audi S4. (340 HP @ 6200 RPM). In normal driving conditions, 2008 Audi A6 should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 128 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, 2008 Audi A6 (540 Nm) has 130 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2008 Audi A6 | 2005 Audi S4 | |
| Make | Audi | Audi |
| Model | A6 | S4 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5202 cc | 4163 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 429 HP | 340 HP |
| Engine RPM | 6800 RPM | 6200 RPM |
| Torque | 540 Nm | 410 Nm |
| Engine Bore Size | 84.5 mm | 85 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1782 kg |
| Vehicle Length | 4920 mm | 4550 mm |
| Vehicle Width | 1870 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2850 mm | 2760 mm |
| Fuel Consumption Overall | 13.4 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 80 L | 66 L |
