A midrange Mercedes-Benz feels like the high end of other automakers' lineups. The 2007 Mercedes-Benz E550 executive sedan we reviewed this week inherits its engine and a good deal of its technology from the flagship S550
. Nevertheless, the ride in the E550 isn't quite as smooth as that of its big brother, and the interior details definitely feel more down-market. Our full review takes a good look at the car's navigation and stereo systems, as well as the E550's performance.