Dinghy
Hello, Doc. I would opt to tow 4 down. If you use a dolly, you need to find a place for it whenever you camp. Also, certain amount of work necessary to secure vehicle onto dolly. It's more convenient (and lighter, too) to tow 4 down. There are many small cars suitable for towing this way. Among most popular are Saturns, since they can also be towed w/ auto trans. (as can some other brands). I'm partial to Saturn, since I have towed one thousands of miles. Whatever choice you make, enjoy rving...it's a great life.
mr. ed
'90 Fleetwood Flair
'00 Saturn toad