BMW Z4 gets better and better

BMW has improved the Z4 in nearly every area, and fitting a hard-top hasn't affected its looks or dynamics. The sharp styling remains, and the two-part roof folds neatly to reveal a more roomy, higher-quality interior. Plus, the 35i engine is superb, as is refinement, and the ride is improved with the optional adaptive suspension. But while it has plenty of grip and pace, and is very desirable, the Z4 isn't as involving as other BMWs. ·