My wife took her 2005 W163 ML500 to Carmax on Monday to see what we could get in quick cash.
They offered about $3K below Kelly BB and Edmunds, and about $5K below NADA. Rather disappointing.

We are ready to make a new MB purchase the week after Christmas of an in stock vehicle from the local dealer. Previous purchases from this dealer have been very close to invoice.
Will MB dealers typically come closer to KBB or Carmax? Or even lower? I've never done a trade-in before, but for multiple reasons I'm not wanting to hassle with selling this one on my own.