2012 Audi S5 vs. 2009 Audi A4
To start off, 2012 Audi S5 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 4,200 cc (8 cylinders), 2012 Audi S5 is equipped with a bigger engine. In terms of performance, 2012 Audi S5 (354 HP @ 5500 RPM) has 136 more horse power than 2009 Audi A4. (218 HP @ 5900 RPM). In normal driving conditions, 2012 Audi S5 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Audi S5 weights approximately 155 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2012 Audi S5 (440 Nm @ 3500 RPM) has 140 more torque (in Nm) than 2009 Audi A4. (300 Nm @ 2200 RPM). This means 2012 Audi S5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2012 Audi S5 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | S5 | A4 |
| Year Released | 2012 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4200 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 354 HP | 218 HP |
| Engine RPM | 5500 RPM | 5900 RPM |
| Torque | 440 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 2200 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1595 kg |
| Vehicle Length | 4623 mm | 4610 mm |
| Vehicle Width | 1852 mm | 1780 mm |
| Vehicle Height | 1382 mm | 1400 mm |
| Wheelbase Size | 2751 mm | 2660 mm |
| Fuel Tank Capacity | 64 L | 63 L |
