I have towed several different vehiclles 4 down on several motorhomes, all without problems. However, you may encounter a lot of limitations on max speed, need to stop and run through gears every so many miles, need to pull fuses to keep miles from recording on odometer, etc. On the other hand, I've heard people complain about where to stash the dolly when you're parked for a few days, dragging it around to hook it up, and, of course, it costs about $1,200 or so to buy. I'm limited to 65mph in my Chevy HHR and am willing to live with that rather than buy and fool with a dolly.
Jerry