 The car is beautiful, great road handling, brakes. Lots of low end torque, great hwy mileage.. but:1) Premature front rotor wear/warping. I had mine replaced 2x because of pulsating brake pedal. The 3rd time they wanted a ton of money, I swapped it out myself  to Brembo rotors and ceramic pads, Total out of pocket for parts: $250, Knock on wood no brake trouble since. 2) Water pump failure, engine overheat. Covered under warranty. I have a strange engine rattle ever since. Sounds like they failed to put some engine mountbolt back correctly, bit refuse to deal with it or ack the issue. " What ? We cant hear nuthing".3) Radar sensor failures (multiple) (Covered under warranty) 4) Speaker failure (Bose, rear left) Covered under warranty.5) Run flat tire sidewall bubble. Not covered under warranty, Swapped out the tires to non-run flats. 6) Several software updates.7) Recent bizarre window behavior: the one-touch window up feature stopped working. I have to hold the button to make the window go all the way up. Once it does, it rolls  down about 1/4" all by itself. I have to make it go up again, and then it stays up. Oh btw, it was doing this for a couple of days, and now it is working again as it is supposed to:one touch take it all the way up, no roll down. 8) Strange auto-transmission behavior: every now and then I experience jerky shifting at low speeds. It does this a few times, then it works fine for months. 9) Soft paint and OEM glass. Within the past year ( exactly 1 year apart) I had to replace my windshield 2x. First time a small pebble caused a palm size spiderweb crack. replaced w genuine MB branded windshield. A year later I was replacing a wiper blade and the arm skipped out of my hands and hit the windshield. Immediate huge 12 inch crack. The autoglass place installed Pilkington glass this time which seems to be holding up.  Paint scratches super easy. 10) Annoying sqeaks and rattles, e.g.: the cup holder insert makes a sort of squeegee-ish noise.