 Best in class comfort and quality.  0-60 is adequate, but the C450 has you covered if you need more.  Roomy backseat good for 2 car seats.  Very comfortable/adjustable driver's seats.  Panorama roof is gorgeous but expensive.  Black Ash wood is the way to go.  Distronic Plus is great, second only to Tesla's Autopilot.  Automatic Emergency braking is standard, unseen in this segment.  Got 15% off the sticker price but it required a good deal of effort and communicating with 4 dealerships.