[GMinTheDriveway]

I agree that the Z4 is a better overall car than the SKY, er Opel GT, even rating my 2004 Z4 vs a 2007 SKY (and I sell Saturns, so I know both very well) but it is definitely nice to be put in the same league. The Opel/Saturn is more striking to look at (a subjective observation at best), but that is the only area that it is even close.
GM needs to work hard on refinement on the next generation of Kappa cars. Ergonomics are horrible, seating position is not adjustable enough and the grindy rowdy nature of the ECOTEC powertrain will not win any NVH awards over any BMW inline-6.