Check in your owner manual to see if the voyager can be towed 4 down if not, you will have to go with the dolly. I would go with brakes in either case as the voyager is a pretty heavy tow dingy. If I did not need the extra room in a van i would go with the Saturns, Hondas, trackers because of lighter weight. Lots of states now require brakes on the towed vehicles. I would prefer the tow bar over the dolly mainly because of the ease of storage.