sucks dude.  at least i won't make fun of you.  these things happen when you get excited about buying a car---you get blinders on, forget to do/check obvious things, tend to be more impulsive, and before you know it, you end up making a fairly large blunder.   that's what your friend is there for--to be the voice of reason, and be the 'devil's advocate', so to speak.  he's supposed to be the critic, finding flaws in the car that would give you negotiating power--like the fact that the car is only 2wd