First post for me. Just experienced this attempted rip-off first hand today. Received the call from my chosen GMC Dealership in Florida to come in to review "final" pricing for my Hummer. Thank goodness I read these posts prior to doing so! Five minutes in, Sales guy produced the pricing sheet with an added line of $10K for a "Market Adjustment" fee. I took the piece of paper and said, "thanks, but no thanks" and said I do not pay for unjustified Market Adjustment surcharges. Before walking out the door, I told the Sales Manager that I own two Tesla's, and after experiencing the incredible positive experience of receiving my Tesla's directly from Tesla (WITHOUT Market Adjustment fees) , as well as their incredible Mobile Service Technicians and local Service Centers, that this negative experience at this particular GMC Dealership is the reason why their way of selling cars will fade away like Blockbuster Video due to their lack of ability to adapt to the changing consumer (and greed!). You'll see no Market Adjustment fees on the Cyber Truck! Anyway, I took 10 minutes to do a Google search on "Highest Customer Service GMC Dealership Rankings in Florida", then call the #1 rated dealership that was less than an hour away, and confirm with their Sales Manager that they do NOT charge Market Adjustment fees on their Hummers (and yes, I got it back in writing on a follow up e-,mail). In the process of transferring my reservation dealership assignment. Should only take a day or so and I will get the Purchase Order signed in writing. Shame on me for not doing my research prior to assigning my Hummer pre-order to a GMC dealership!!