I have a Ford Explorer that I tow with my 40' pusher, I would never try it with my 37 gas- that I had -- even with a braking system it would be to much to handle.
I had a Honda CRV, seat five and still had storage in the back, around 2300 pounds, 4 wheels down, 65 mph ok -- up to 250 miles/as per the book -- start run through gears -- than pull again. Used it for five years and no problems, not even tiers.