Sorry, just saw this post today. These are hitch-mount, so you will need a receiver hitch. A word of advice: go for the 2" stinger model if you can. I had to go 1 1/4" because my old Subaru had the small receiver (only kind they used to sell for Subies). When I use it on the Outback with a 2" receiver, I have to use the adapter sleeve - - a pain in the ass.

As far as swapping it car-to-car, I find they are easier to manhandle in the folded-upright position. Slide into receiver, pin or bolt tight, then flip it down.