The twin cam, convertible or coupe, was indeed fast - very fast for its day, which made it all the more exotic.
John - that is indeed an MG-Arnold coupe. I could not resist it. It is a NEO model and I got in through Amazon, from ModelCarsUSA - its a monster outfit in Germany that ships through a distribution center in Florida - the cars often come in a box marked "American Excellence" although it has nothing to do with the diecast maker of the same name.
They have this is several colors, including mine:
http://www.amazon.com/Arnolt-C...ywords=1%3A43+NEO+MG
I search Amazon, diecastdirect, MintModels, etc, every thursday morning for anything new. ModelCarsUSA has a particularly high turnover and I have learned that when they have something different, don't hesitate.
Another, similarly very cool rare English coupe I got in those searches is an AC Greyhound. Its not on the layout now, but I'll rotate into the car dealer's inventory soon.