Yes itīs one of two prototypes ever built by Ascari!
This one was made for Franz-Josef Paefgen, who was the head of Audi.
At least it was what the seller told me.
I think, Ascari has planned to built a series of 40 cars, but this thing just was too radical, really.
Maybe the best way would have been to create a kind of Audi TT Speedster Cup...