I'd have to say, if you want an actual 7 seater that has any sort of room for luggage your looking at a Yukon XL or the like, just rented one for a work trip, over 1000 miles with 5 grown men and their luggage (yes 7 guys and luggage would have fit). Plenty of room and one of the guys camped out in the 3rd row and turned it into his office. 5 suit cases and 3 cases of beer
, again plenty of room.
THAT is a 7 seater. These highlander etc 7 seaters are not useable 7 seat vehicles.