You would make very good detectives Wendax and Julien, as I did take this photo at the 2011 Epoqu'Auto in Lyon. Where you both there too?
Anyway, although Wendax mentioned that this was somewhere near the Thierry Automobile stand, Julien gets the point for correctly identifying that they built the car. It is Mercedes-based, although a Corvette powertrain can also be used. More details are on their website.