You need to CALL any dealer before you go to look at a car advertised
ANYWHERE!
Get the full (FIRST AND LAST) name of the person that you are talking
to on the phone and ask them if the car you are looking at is available
or if this is a "Bait and switch" car, meaning "teaser" car as you
described above. Make sure you tell whomever you speak with that if
you get to the lot and the car is not there, you will leave immediately
and be mad! This is an old tactic that dealers use and most dealers
are smart enough to know that today's savvy internet consumers don't
play that garbage anymore.
If they do it anyways, report to dealer to the BBB and NIADA (National
Independent Automobile Dealers Association) and your local state's
dealer association AND TELL EVERYONE YOU KNOW. They won't
do it for long!!