2009 Audi A4 vs. 2012 Audi S4
To start off, 2012 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2009 Audi A4. In addition, the cost of maintenance, including insurance, on 2009 Audi A4 would be higher. At 3,000 cc (6 cylinders), 2012 Audi S4 is equipped with a bigger engine. In terms of performance, 2012 Audi S4 (333 HP @ 5500 RPM) has 111 more horse power than 2009 Audi A4. (222 HP @ 4000 RPM) In normal driving conditions, 2012 Audi S4 should accelerate faster than 2009 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, 2009 Audi A4 (450 Nm @ 1400 RPM) has 10 more torque (in Nm) than 2012 Audi S4. (440 Nm @ 2900 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2012 Audi S4. 2012 Audi S4 has automatic transmission and 2009 Audi A4 has manual transmission. 2009 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2012 Audi S4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 2012 Audi S4 | |
| Make | Audi | Audi |
| Model | A4 | S4 |
| Year Released | 2009 | 2012 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 333 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 450 Nm | 440 Nm |
| Torque RPM | 1400 RPM | 2900 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | 7-speed automated manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4550 mm | 4704 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1427 mm |
| Wheelbase Size | 2660 mm | 2809 mm |
| Fuel Tank Capacity | 70 L | 64 L |
