Probably a Mercedes E-350. From 2010-2013 is probably about 18-25k depending on mileage. They're hard to find loaded but the basic package is nav, heated seats, 3 position power memory seats for both passenger and driver. I like all the options so it'd be one with the bixenons with headlamp washers and active curve illumination, keyless go, pano sunroof, power trunk closer, front/rear parking sensors, driver assistance package (adaptive cruise control, lane keeping, blind spot), very rare to find one with really optional stuff like night vision assist, bang & oluftsen sound system, side blinds in addition to the rear blinds which are standard, rear entertainment package, cooled seats in addition to the heated ones.