2009 Audi S4 vs. 2013 Audi A7
To start off, 2013 Audi A7 is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Audi S4. In addition, the cost of maintenance, including insurance, on 2009 Audi S4 would be higher. At 4,161 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2013 Audi A7 (414 HP) has 74 more horse power than 2009 Audi S4. (340 HP) In normal driving conditions, 2013 Audi A7 should accelerate faster than 2009 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2013 Audi A7 weights approximately 1015 kg more than 2009 Audi S4. 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, 2013 Audi A7 (549 Nm) has 139 more torque (in Nm) than 2009 Audi S4. (410 Nm). This means 2013 Audi A7 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2009 Audi S4 | 2013 Audi A7 | |
| Make | Audi | Audi |
| Model | S4 | A7 |
| Year Released | 2009 | 2013 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 2995 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | single |
| Valves per Cylinder | 5 valves | 6 valves |
| Horse Power | 340 HP | 414 HP |
| Torque | 410 Nm | 549 Nm |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Single Speed |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1945 kg |
| Vehicle Length | 4580 mm | 4980 mm |
| Vehicle Width | 1780 mm | 2139 mm |
| Vehicle Height | 1400 mm | 1408 mm |
| Wheelbase Size | 2660 mm | 2914 mm |
| Fuel Consumption Highway | 11.2 L/100km | 7.5 L/100km |
| Fuel Consumption City | 16.8 L/100km | 13.4 L/100km |
