I don't think a bluemotion gti is all that strange, a number of people including myself have fitted the blue motion body panels to the underside of the car and as long as the stop start can be deactivated (which it will with a dsg) then I see no reason not to have those technologies on a gti with the exception of the low rolling resistance tyres, but it will all add up to lower co2 emissions so lower car tax potentially and better mpg for when you need it.
Its also a subjective view but another reason to smooth the underside of the car is speed up air flow so less lift from high air pressure and a more stable and planted car at speed (no im not suggesting down force just less lift)
My choice would be gti with 7 speed dsg the mechanical diff and blue motion, with adaptive chassis control which will hopefully be the more sophisticated version with throttle map steering and suspension control.
