I have a Receiver style hitch on mine that mounts to the bumper and to the underside of the body by the spare tire, I use it to pull our 8' utility trailer (up to 1300lbs or so fully loaded) and I use my receiver mount bike carrier in it too.
My dad's SD has a bumper mount hitch that clamps to the shock struts and the underside of the bumper with two huge bolts. We've pulled the utility trailer with several hundred pounds of lumber and such on it with no problem. Until you reach 1000+ lbs you can barely even tell the trailer is there. Pulls it no problem.
Here are a few pics of my hitch setup:
And this is the hitch thats on my dad's car: (sorry no pics of it mounted)
They both perform the same task just fine and are very very strong. Mine is a little more convenient and nice looking though, being a receiver style. However, mine cost me $156 + drill bits And his was $45
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