A hitch is an accessory that you have to get .. it doesn't come with the ML but the spare tire does =) out of 100 MLS probably only 5-10 have them because its not needed.. its for people used to tow boats, trailers, bike racks, etc.. I've seen one ML500 tow a trailer the size of a RV, YES, I was shocked to see it! is it even safe? the guy should have gotten a hummer instead for that purpose !! better yet unimog =)