I've been driving an 07 E550 sedan off and on for the past couple of weeks that was beat on that a friend is trying to unload, as it was a 'company' car a fired employee drove. I find that it is an abject POS. I like the way it looks, but it lags on acceleration as much as my chipped E300 Turbodiesel, reeks of smoke, even though it has the cabin filter and rattles like a chevvy on the inside with niggling interior issues. Not impressed.