I saw that commercial too. That's a pretty big trailer to be pulling -- I suspect it must be pushing the limits of the Pathfinder's tow rating. You don't need a Super Duty to pull an Airstream but I'm not sure I'd want to use a "crossover" type SUV.
Hell I guess they used to use cars back in the day, but those were body-on-frame RWD cars with big V8 engines.