^ what kind of bike is he riding?
joking joking.
the sorento actually makes a nice tow vehicle for small trailers when properly eqiuipped. i almsot bought one before we settled on our explorer (direct competators) and a good frined has one (though he went v6). i suspect it has pleanty of stopping power. we used a gen 2 explorer to pull a 2500 lbs pop up all over the place and it was never an issue. i would be more worried about cooking the trans and even then if he keeps OD off i dont see it being a problem short term. Thats a starter trailer if ive ever seen one. When its time to upgrade after a season or few, plan to upgrade the tow vehicle as well.