Coastal E-Tech makes a hitch, but it's really just for hitch-mount bike racks. You COULD try to use it for towing, but your mileage would suck, and you could damage your car or void your warranty.
If I were you, I would only even ATTEMPT to tow the smallest U-Haul trailer (the little guy maybe 4 feet long, two feet tall,) or a VERY small boat. (10 foot, max, maybe even only a solid-frame zodiac-type.) Since the car isn't designed for towing AT ALL, there is NO rating for max tow weight.