The one which was for sale at BHM was with a matching Plus 8 or early Roadster. It was cream with dark red wings.
That was built by Kevin Vernon for a chap in Northern Ireland.The car was called Henrietta and the trailer was called Humphrey.
It was a thing of beauty, but was really quite heavy and of course not really legal for use on a post-1998 Morgan as they aren't certified for towing.