Very, very Boxsteresque in proportion.
I really don't see a clash with the Boxster though, it is clearly aimed at a different market - more of a modern day MR2 / MRS, with decent efficiency. The simpleness of the cabin and lack of toys in comparison to the Porsche will set it apart.
No, the diesel engine doesn't do much for me either, but us as car enthusiasts should embrace the concept because after the 4 x 4 sports car bashing will be next. I get the feeling though a much better unit would be the 1.4 twin charger lump.
Also, if other VW group brands are to get the hardware, lets hope we see the resurrection of the SEAT Salsa from a couple of years ago.
It's all about the twisties....