We contemplated the Max but decided it would be too big a jump. I don’t think it will be a problem. My wife does like to be prepared though so we’ll see what all she wants to outfit the new space with.You are going to love the size. I went from a Mercedes ML350 to the Expedition std length and the interior space was cavernous, the switch to the EL was almost as big a shock. Where before I had to keep the third row seats down to have enough room in the back for the stuff that I carry, Now I keep all of the seats up and still have plenty of room behind the rear seat. I keep an emergency backpack, blankets, towels jumper cables, scrapers, rope etc. There is a lot of room, but it doesn't feel like you are driving something that big because it handles so well. Obviously I have the 17 but I don't think you are going to find the 18 any different from that standpoint.