Autoblog (Enlarge photo)

07/04/2008 22:01. We're seen the spy shots , so the revelation that BMW's next generation Z4 will be equipped with a folding hard top isn't much of a surprise. The mules undergoing testing show a two-piece metal unit that should be able to fold neatly into the trunk, while not infringing too heavily on luggage space.

More importantly, the new Z4 will be sporting a range of engine offerings, including an array of four- and six-cylinder mills, including the much-loved twin-turbo, 3.0-liter six found in the 135i, 335i and 535i.... // Autoblog