It happens all the time at dealerships, especially bad ones. If they are only talking to you about 1 car and trying to push it on you, regardless of what you, the customer wants, run very fast and very far away!
Do your own research, find the car you want. Look online at Carmax, see what they are going for. Secure financing, if possible then go to the dealership and talk price. When you talk payments or seem desperate for credit, they'll try and take huge advantage of you.