2008 Audi S4 vs. 2009 Audi A6
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S4. In addition, the cost of maintenance, including insurance, on 2008 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2008 Audi S4 is equipped with a bigger engine. In terms of performance, 2008 Audi S4 (339 HP @ 7000 RPM) has 191 more horse power than 2009 Audi A6. (148 HP @ 5700 RPM). In normal driving conditions, 2008 Audi S4 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S4 weights approximately 200 kg more than 2009 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2008 Audi S4 (410 Nm @ 3500 RPM) has 200 more torque (in Nm) than 2009 Audi A6. (210 Nm @ 1750 RPM). This means 2008 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2008 Audi S4 | 2009 Audi A6 | |
| Make | Audi | Audi |
| Model | S4 | A6 |
| Year Released | 2008 | 2009 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1779 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 339 HP | 148 HP |
| Engine RPM | 7000 RPM | 5700 RPM |
| Torque | 410 Nm | 210 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 212 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 10 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1795 kg | 1595 kg |
| Vehicle Length | 4580 mm | 4800 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Consumption Overall | 13.4 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
