 I changed from a Honda Accord coupe into the 2010 Q5 Premium Plus model with the S-Line package.  I love the smooth ride, the quiet of the engine and the ability to pick up speed quickly.  As for changing over from a coupe to a crossover, it has been seamless.  The car is nimble, parks in standard spaces yet feels a lot larger when on the road.  It also offers great general visibility from all sides.  I didn't get the optional side assist feature, but still feel great about the views I do get.