I will confess, I got a huge wave of deja vu upon seeing the striking new Mercedes-Benz Vision Iconic concept--specifically, the equally dramatic Mercedes-Maybach Vision 6  (see comparison, below) from (surprisingly) nine years ago. A little research revealed that the older concept is over two feet longer than the newer one, making the latter slightly more production-intent (although, of course, Mercedes hasn’t committed to anything yet).With the reintroduction  of the 1960s-