If it's any help, we bought an MPG just over a month ago, and we tow ours with a sway bar, hauled by a Hyundai Santa Fe (similar to a Murano). We just returned from the Smokey Mtns, and had NO problems. Words of advice- travel with the potable water tank 1/3 full, and add some additional weight (suitcases, etc) to the back of the trailer (opposite end of the towing hitch), and it won't weigh down the minivan so much. We had a blast in our little Kermit (we have the 183- green model)
best of luck! We love our little guy!