I honestly have a hard time calling anything near or over two tons a 'sports car', 'sports coupe', or what ever. Unless like the latest speacial edition Mustang you only plan to drive it at 'Modicum' pace on sunny sunday afternoons, at which point you're really no longer a driver.
I would prefer a V8, don't get me wrong, but I would be seriously tempted bya strong V6 given it's packaging and chassis dynamics advantages. Every review of the 3800 equipped 4th gens praised it's more nuetral handling over the nose heavy V8 cars. Give the V8 to the 'SS' cars which more than likely would end up being weighted down with every option on the book and leave the V6 to a light(er), better handling Z28 (and I mean 'Z28').