2009 Audi A6 vs. 2007 Audi S6
To start off, 2009 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi S6. In addition, the cost of maintenance, including insurance, on 2007 Audi S6 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S6 is equipped with a bigger engine. In terms of performance, 2007 Audi S6 (436 HP @ 6800 RPM) has 140 more horse power than 2009 Audi A6. (296 HP @ 6200 RPM) In normal driving conditions, 2007 Audi S6 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 55 kg more than 2007 Audi S6.
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, 2007 Audi S6 (540 Nm @ 3000 RPM) has 140 more torque (in Nm) than 2009 Audi A6. (400 Nm @ 3000 RPM). This means 2007 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2009 Audi A6 | 2007 Audi S6 | |
| Make | Audi | Audi |
| Model | A6 | S6 |
| Year Released | 2009 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 5204 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 296 HP | 436 HP |
| Engine RPM | 6200 RPM | 6800 RPM |
| Torque | 400 Nm | 540 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Engine Bore Size | 84.6 mm | 84.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| 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 | 4 doors |
| Vehicle Weight | 1815 kg | 1760 kg |
| Vehicle Length | 4840 mm | 4920 mm |
| Vehicle Width | 1860 mm | 2020 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2770 mm | 2850 mm |
| Fuel Consumption Overall | 13.1 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 80 L | 80 L |
