Will my bike hitch fit on any car? I'm trying to sell a 4-bike hitch on craigslist.   One thing I'm unsure of is whether or not it's tailored to universally fit on all cars.  I'm worried because if it's too specific, a few people who own those cars will buy it, but if it's universal, it should be okay.

What is the standard for hitches? Are they universal? Or are they custom fitted to support different vehicles?
As for the vehicle most buyers need only consider the size of hitch they have, 1 1/4" or 2" are the typical sizes and try to get a hitch of the same size. You can usually get an adapter to fit a rack that is sized differently than the hitch. 

Typically the hitch racks sit a bit back off the rear of your car to accommodate rear features of most vehicles. I'd only be worried if they had a spare tire mounted on the rear of the vehicle.