This may seem impossible for a person to get away with but believe me - it happens all the time.
The finance manager is counting on you being confused and desperate to get out of there, so assumes you will simply go along with whatever he says. Most of the time, it works.
Avoid it by forcing him to slow down and calculate right along with him to make sure that you are getting a fair deal and that you both come up with the same numbers. Waste his time!
They ask you to get the price from another dealer and they will beat it. The part they didnt tell you is that other dealers will not just hand over their information for you to take to someone else.
This deal is almost impossible to get because most dealers sell different makes and models anyway.
Avoid it by not falling for it at all.
To avoid this simply tell them that you refuse to buy something you do not want just so that they get paid. If it is that much of a problem they should get another job.
Next thing you know, you buy the car and they tell you that it is due for payment in 2 months. Some will not even be applicable at all.
They can claim a typographical error or that the deal was a week ago. It is an outright lie, and you should get your deposit back.
Avoid this by asking the dealer to put that in writing before you purchase the car and make your deposit by credit card so that you can refute it.