I used to be a big car geek, but since moving to the city that passion has waned.  Nevertheless, I’m still intrigued by automobiles as design.  As I walked past the BMW dealer in San Francisco, this blue beauty caught my eye.  The new 2010 BMW Z4 is gorgeous on paper, but absolutely stunning in person.  With a retractable hard top and excellent handling, this is what roadsters were meant to be.