This year, Maybach makes the leap from ultra-premium to ne plus ultra–premium with the dramatic Landaulet, the marque’s first modern open-topped model and the spiritual successor to the vaunted Mercedes-Benz 600 Pullman Landaulet of the 1960s, whose airy rear seats accommodated various heads of state, monarchs, movie stars, and a pope or two. Derived from the long-wheelbase Maybach 62, the Landaulet features a semiautomatic folding soft top over the rear seats and a fully enclosed chauffeur’s co