Mom may be renting an ECV for our trip and neither of us knows anything about them. She currently walks with a normal gait a little slow and does not normally use a cane. She wears a brace on her ankle. She has a handicapped permit. The whole ECV thing seems really bulky and takes up a lot of space and looks difficult to maneuver in comparison to the power chair as it doesn't have that whole front end sticking out and the basket and all. I only ever see people with the scooter thing, so how do I know which one we need? Is there any difference in ease of operation and the fit in smaller spaces like in the shops and stores? We intend to be lots of the little shops and this is her first time with an ECV so it needs to be easy to operate and steer. Last time Mom was on motorized wheels was Dad's motorcycle and she wrecked it right into the fence because she freaked out and wouldn't let go of the throttle. So Mom and motorized wheels have a bad history already. We'll be using Disney transport or taking a cab and it needs to be lightweight enough that I can lift it as Mom can't do any heavy lifting and I can barely pick up a 40 lb sack of dog food to get it into the trunk so it has to be lighter than that if we take a cab. Or are we better off just renting day by day at the individual parks? How much trouble is it traveling with an ECV on and off the busses and on the boats and monorails and at resorts? I am so clueless. Help?