2006 Audi S4 vs. 2007 Audi S8
To start off, 2007 Audi S8 is newer by 1 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 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 104 more horse power than 2006 Audi S4. (340 HP @ 7000 RPM) In normal driving conditions, 2007 Audi S8 should accelerate faster than 2006 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 430 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 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Audi S4. In wet, icy, snow, or gravel driving conditions, 2007 Audi S8 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, 2007 Audi S8 (540 Nm @ 3500 RPM) has 130 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 2006 Audi S4 | 2007 Audi S8 | |
| Make | Audi | Audi |
| Model | S4 | S8 |
| Year Released | 2006 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5204 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 444 HP |
| Engine RPM | 7000 RPM | 7000 RPM |
| Torque | 410 Nm | 540 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 12.5:1 |
| Acceleration 0-100mph | 5.9 seconds | 5.1 seconds |
| Drive Type | Front | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1510 kg | 1940 kg |
| Vehicle Length | 4590 mm | 5070 mm |
| Vehicle Width | 1790 mm | 1900 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.6 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
