It all sounds interesting and logical. Only one problem with the 5 GT - for a true GT, a car that must pull at your heartstrings, appeal to the emotional side in you, embody classy and discreet elegance - well, it's very ugly.
Oops, did I say that out loud?
I just don't trust BMW designers these days to pull off these "interesting" shapes well.
2015 F80 ED
2004 Z4 3.0
2014 X1 28i ED