My cats have always ben travelers, a small litterbox on the floor in the backseat. a nonspill water dish, and there favorite blanket or towel one cat wanted my old sweat shirt on the back seat and they are happy. I do not lock them away in the car, Otis likes to sit on my shoulder and watch the traffic, Had a gray tabbie (gone but not forgotten) that loved to ride on the dashboard, got some strange looks but Archie was everyones friend. Our bank's drive up window started keeping kitty treats on hand for him, got to the point he would talk to me untill I went through the drive through. LOL