The all-new Z4 roadster picks up where the Z3 left off. Well, sort of. There's no coupe version this time around. And the jury is still out on whether the Z4's "flame-surfaced" body is a welcome replacement for its predecessor's sexy corporate styling. In other respects, the newcomer offers much to like -- a more rigid chassis, a real glass rear window and, starting in the spring of 2003, a Sequential Manual Gearbox (SMG) like the one in the M3. All in all, the driving experience is exhilarating -- so if you can get past the styling and come up with the requisite cash, you know where this one belongs on your test drive list.