According to a recent report by Autocar, Audi is filing plans to develop some form of production line for the concept and if the plans get approved, then Audi will put the car onto the market.
Reports say Stefan Reil, head of development at Audi’s Quattro Gmbh division, has confirmed production but needs to look further into methods of building, saying in the Autocar article,
"We are rethinking standard processes to make it possible. We know how to engineer it already." Adding, "We need feedback to see if it is possible. Audi has no heritage in building 200-500 cars that are really exotic."
So it seems production methods and building processes are the only restriction holding the concept back.
Rumours say the engine would be similar to that of the one found in the Audi TT RS, only more powerful and offering more torque. Reil said about the proposed engine,
"A really good turbocharged petrol engine has around 140bhp [104kW] per litre. We’re a little under that now. But with a larger turbocharger something around 350bhp [261kW] is possible."
Plans have advanced enough to the point where prices have already been mentioned as well, with Reil saying, "It won’t be over €100,000."
Although the price seems very cheap once converted into Australian dollars - around AU$140,000 - additional charges would see the price tag skyrocket to around double that. A Porsche 911 Carrera GTS for instance, has a price tag of Euro 104,935, whereas in Australia the price is AU$270,100.
It'll be the perfect collector's car if Audi decides to go ahead though. We'll keep you updated.