I never noticed it said a fullsize seats 6 until you mentioned it. I wonder what would happen if you showed up with 5 other people and said you booked fullsize because it seated 6. Would they upgrade you to a minivan? Or maybe it would end up like your Premium w/o ABS situation. I've also noticed the equipment list is preceded with "
Most _____ rental cars include", so they can technically say your Luxury car with roll-up windows and manual door locks wasn't one of the "most".