OK lets see, ratings aside, a 5000lb f150 towing a 5000lb boat vs a 3000lb car towing a 2000lb boat. Take a stab at which tow vehicle is gonna get tossed around more here...i towed our family's glasstron GS205 (mercruiser 5.7l I/O) a few times with my F-150 to and from storage and to the boat shop. loaded up fully wet, the boat and trailer weighed close to the max rated tow weight of 5000lbs, and THAT was a handful to haul down to a stop, even with surge brakes, towing close to the limit, i can't imagine people towing twice the limit, and at highway speeds no less.