 I have owned Mercedes for the last 40 years, and this car is absolutely the most poorly built and least reliable. All others were fine. With 9500 miles, mine has loud squealing brakes, a backup camera that is unusable due to poor optics, Nav map display "jumps" constantly, worse than my hand held $80 Garmin E-Trex. This is the most irritating item of all, and Map must be turned off at night to prevent annoying distraction. The car pulls rt. on 95% of the roads.  