IF YOU have secretly hankered after a Smart, then now is the time to come out of the closet, because the virtually all-new 451-series ForTwo comprehensively updates and improves a personal transportation concept that can only become more relevant and sensible as time goes by. It isn’t perfect, with a firm ride probably still being the two-seater runabout’s Achilles Heel, and the price is up against some excellent light and small cars, but the Smart is like absolutely no other car in the world today, or ever. And the 451 is more practical and fun to drive, cheaper to run and cleaner burning than its patchy predecessor, while coming across as more grown up and refined than ever before. Here, at last, is the Smart ForTwo you could easily justify buying, without suffering the compromises of its decade-old predecessor.