2009 Audi S6 vs. 2007 Audi S4
To start off, 2009 Audi S6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S4. In addition, the cost of maintenance, including insurance, on 2007 Audi S4 would be higher. At 4,172 cc (8 cylinders), 2009 Audi S6 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 6800 RPM) has 5 more horse power than 2009 Audi S6. (335 HP @ 7000 RPM) In normal driving conditions, 2007 Audi S4 should accelerate faster than 2009 Audi S6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi S6 weights approximately 305 kg more than 2007 Audi S4.
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, 2009 Audi S6 (420 Nm @ 3400 RPM) has 10 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2009 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2009 Audi S6 | 2007 Audi S4 | |
| Make | Audi | Audi |
| Model | S6 | S4 |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 335 HP | 340 HP |
| Engine RPM | 7000 RPM | 6800 RPM |
| Torque | 420 Nm | 410 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1815 kg | 1510 kg |
| Vehicle Length | 4840 mm | 4590 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2660 mm |
| Fuel Consumption Highway | 12.4 L/100km | 10.2 L/100km |
| Fuel Consumption City | 16.9 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 14.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 82 L | 63 L |
