BMW did the handling-focused math, and decided that cutting the hardtop was the best course of action. Soft-top convertibles allow the folded roof to fit into a smaller space than a hardtop.

So, what are the problems with these hardtop convertibles? Whether a four-seater like the F33 BMW 4 Series or a dedicated two-seater like the Mazda MX-5 RF, hardtop convertibles can add a layer of ...