I would say the Vignale Fiat 1300/1500(S) is the elegant interpretation of the coupé topic.

 

This car is huge ! The construction on the base of the FIAT 1500C sedan allows a big trunk and much space for the legs of the backseat passengers.

The gimmicks are: power windows, remote trunk hood opening, remote tank cover opening.

Pictures of brochures, magazine articles and advertisement can be found here.