That three-pointed star on the Concept Ocean Drive convertible may be a bad omen for DaimlerChrysler’s underachieving Maybach brand.  The S-class-based Mercedes concept, to be shown at the Detroit auto show, has everything that would warrant a double-M Maybach badge. There are four doors, a big V-12 engine and lots of wood and leather.  For Mercedes, the Ocean Drive is a halo car. The brand has taken a beating over quality and, potentially, a less-exclusive image. But it’s nearly five years since Maybach’s U.S. unveiling, with no new models in sight. Continue reading Ocean Drive concept could hint at the death of Maybach