As far as I can tell, you won't see "hybrid" on Audi's site because the "energy recuperation system" isn't a hybrid system at all -- it simply banks energy from the alternator and then reduces the load on the alternator (and the load on the engine, as a byproduct) when requested, allowing the car's energy needs to be drawn off the battery during that time instead.

From Audi's literature:

>While the vehicle is coasting or braking, the alternator voltage is raised above the level of the basic electrical system. During these phases the alternator can convert the vehicle’s kinetic energy into electrical energy, which is stored temporarily in the vehicle battery. When the vehicle subsequently accelerates or is driven at constant speeds, this energy is used to relieve the load on the alternator, allowing a fuel saving of up to 3%, depending on the driving cycle.

I am fully aware of how efficient a modern turbo engine can be, and perhaps you did, in fact, best the EPA estimates. Did you calculate these numbers yourself, or rely on the onboard computer?