2006 Audi A4 vs. 2011 Audi S4
To start off, 2011 Audi S4 is newer by 5 year(s). Which means there will be less support and parts availability for 2006 Audi A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 would be higher. At 3,129 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2011 Audi S4 (333 HP @ 5500 RPM) has 78 more horse power than 2006 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2011 Audi S4 should accelerate faster than 2006 Audi A4.
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, 2011 Audi S4 (440 Nm @ 2900 RPM) has 110 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 2011 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 2011 Audi S4 | |
| Make | Audi | Audi |
| Model | A4 | S4 |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 255 HP | 333 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 330 Nm | 440 Nm |
| Torque RPM | 3250 RPM | 2900 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4590 mm | 4704 mm |
| Vehicle Width | 1780 mm | 1829 mm |
| Vehicle Height | 1430 mm | 1427 mm |
| Wheelbase Size | 2660 mm | 2809 mm |
| Fuel Tank Capacity | 63 L | 64 L |
