4 door coupe, definitely. However, I think that if Porsche and Lambo are going to go for it, they have to limit themselves in terms of styling so that it doesn't look like the proper coupe if that makes sense. For example, I think that the rear on that Panamera Coupe (the PS) looks pretty ridiculous. Another great example of a Coupe turned into something else is the Cayenne. The front looks horrible because they tried so hard to make it look like a 911.