HI! Last year my mother rented an ECV from outside the parks and had a holder in the back for her oxygen tank. I haven't had much luck finding out if there is such a thing on any of the scooters rented at the parks. The family will be staying off-site and it was very hard tearing down and putting back together the scooter to go back and forth from hotel to parks last year so she's decided to just rent from the parks each day. We know there are baskets but anyone know if they're equipped to hold oxygen tanks? Thanks for any help!