2006 Audi S4 vs. 2007 Audi A6
To start off, 2007 Audi A6 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 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 111 more horse power than 2007 Audi A6. (229 HP @ 4000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 315 kg more than 2006 Audi S4.
Because 2007 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, 2007 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, 2007 Audi A6 (450 Nm @ 1400 RPM) has 40 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 2007 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 | 2007 Audi A6 | |
| Make | Audi | Audi |
| Model | S4 | A6 |
| Year Released | 2006 | 2007 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2967 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 229 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 1400 RPM |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Acceleration 0-100mph | 5.9 seconds | 7.7 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1510 kg | 1825 kg |
| Vehicle Length | 4590 mm | 4940 mm |
| Vehicle Width | 1790 mm | 1470 mm |
| Vehicle Height | 1420 mm | 1860 mm |
| Wheelbase Size | 2660 mm | 2850 mm |
| Fuel Consumption Overall | 13.8 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
