Kinda makes me laugh, you got rid of the car because you couldn't sort out a shimmy.. lol. Well whatever makes you happy. Some rims and tires would have solved your problem and cost around 3k so you would still be even and have your Boxster.
Oh well at least teh BMW is nice (barf) ... They styling is just so ugly, I have no idea what they were thinking when they did the latest BM's..