The Corvette Stingray Concept was featured in Transformers 2: Revenge of the Fallen and then unveiled at the 2009 Chicago Auto Show. However that was a coupe model which is like the vehicle spotted in Beverly Hills recently.
Of course, Beverly Hills
had the chance to see a Speedster version of the 50th Anniversary Corvette Stingray Concept parked in the area.
And since GM has said absolutely nothing about a Speedster version we can only assume that this is the work of a tuning firm.