Like someone pointed out above, alot of salesmen
(NOT ALL) have no idea what they are selling. Some will even sink so far to trash other nameplates (i.e. a VW salesman comparing a Jetta to a 3 Series), assuming you are gullable enough to believe their load of bull.
Then again it works on about 80% of the people that step foot in showrooms because most people are too lazy to do their homework and rely on useless facts from Consumer Reports not to mention the whole thought of a car to get from point A to B
end rant 
