I'm impressed. That's a legendary weapon, and everyone here knows it by the name "pystykorva", which means the dog finnish spitz. The target of the weapon reminded of the dogs ears.
But back to the topic.
To lower the fuel consumption audi made an effort to improve the aerodynamics. The coefficient of drag is 0.25 compared to 0.29 which is the worst case of the standard model.
I found this list on another forum. It shows how much each modification area contributed to the total lowering of the aerodynamic drag.
Cooling package (including radiator, intercooler, oil cooler, etc) 33.4%
Exterior 31.7%
Front wheels 13.1%
Rear wheels 6.9%
Floor 6.9%
Rear Axle 3.1%
Engine 3.1%
Front Suspension 1.4%
Exhaust 0.7%
The only aerodynamic difference that I have noticed are the skinny 145/80R14 tires with flat wheel covers.