When I travel alone or with Carrie I can fold down the rear seats and put the Expedition in the back of the car. When Byron and Leili claim the rear seat then my ride goes on top of the car. Carrie has the same car model I have so I took her roof racks and put them on my car along with my racks. It makes a nice slot for the front tires to rest in. I simply tie it down with nylon webbing (easier then rope to work with) and I'm good to go. I've been doing it this way for the last three years without a mishap
A couple of years ago I had to get four trikes loaded on the car. Two on the roof and two on a Alpaca rack.