2006 Audi S4 vs. 2008 Audi A6
To start off, 2008 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 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 2006 Audi S4. (340 HP @ 7000 RPM) In normal driving conditions, 2008 Audi A6 should accelerate faster than 2006 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 400 kg more than 2006 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Audi S4. In wet, icy, snow, or gravel driving conditions, 2008 Audi A6 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, 2008 Audi A6 (540 Nm @ 3000 RPM) has 130 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 2006 Audi S4 | 2008 Audi A6 | |
| Make | Audi | Audi |
| Model | S4 | A6 |
| Year Released | 2006 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5202 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 429 HP |
| Engine RPM | 7000 RPM | 6800 RPM |
| Torque | 410 Nm | 540 Nm |
| Torque RPM | 3500 RPM | 3000 RPM |
| Engine Compression Ratio | 11.0:1 | 12.5:1 |
| Acceleration 0-100mph | 5.9 seconds | 5.2 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1910 kg |
| Vehicle Length | 4590 mm | 4920 mm |
| Vehicle Width | 1790 mm | 1870 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2850 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
