Yes - I don't have details on the builder as the information came from the display board next to the car at the Newark Kit Car Show where I took the picture.
The board states:
Jaguar E2A
1960 Prototype of the famous E-Type Jaguar
American Racing team Briggs Cunningham initially ordered the E2A for a private assault on Le Mans.
The car was never given an official designation but was known by its chassis stamp of E2A.
Created here from a genuine short wheelbase Jaguar XKE