I have created my own problem. My question was "what is this?" and you answered it correctly. I was actually expecting the name of the driver but I didn't ask for it, so I award you one point.
This is indeed an Epiglass Sonata GRP shell. They only built 3 in total, one of which has been a previous puzzle, the Ching Special. On one of the puzzles regarding the Ching, it has been identified as a Falcon shell, but this may not be so.
A further point is available to anyone who can tell me the name of the driver.