BMW has released two new videos of the 2009 Z4, one that gives us a backstage-look on the work that went behind the development of the hard-top roadster and another concerning the styling of the car with BMW's exterior designer Juliane Blasi sharing her thoughts on the matter. The second-generation Z4 that comes with a two-piece, electro-hydraulically operated Retractable Hard-Top roof that can be raised or lowered in 20 seconds, will make its world debut next month at the Detroit Auto Show.BMW Z4 Prototype
BMW Z4 Exterior Design
