dealers are easy to sort through, I use my age old technique which goes like this.
me = price is X
dealer = car is not of best condition, paint has bird poop on it and I think its not genuine bird poop either, I'll pay you X-25%
me = I'll take X+30% - special deal for you,
dealer = ??? - are you serious??? -
me = yep - now gtfo
best are the hilarious characters who are "dealer wannabees" they show up in a diesel smelling car (because their sarviss teyshunn sprays it everywhere including the interior and the AC marinates it into the occupants)
try to use dealer teminology but fail - I sometimes would school them the actual words to use then kick them out. FUN TIMES..