I don't think it's the same car, as the b-pillars are wrong, but this really looks like the Park Ward-built experimental lightweight 3 1/2 coupe from 1934, which was later fitted with flowing streamlined wings like this car (possibly by Abbott) and then fitted to a Rolls 20/25 chassis (and recently returned to a Bentley chassis).
I'd be interested to know exactly what this one is!