I came across a couple dealers who advertised trucks they didn't even have possession of yet. Many used vehicles come from auctions. The dealer would advertise whatever they bought at auction even though it would be 2 weeks before they were delivered. Funny how they could list a price too without knowing the full condition of the vehicle.
I've even called ahead to check if the vehicle was on the lot and said I would come at xx time only to find out it was "at another lot" or "the manager must have taken it home for the night".
There's no winning.