The most important thing to know about negotiating with a used car dealer is that they will base their boundaries on negotiating their perception of you. If they see you as knowledgeable and insightful, they know they can't force you. Likewise, if they think you're stupid and stupid, they know they can charge you more for a car. Have a peek here to know more about car dealers online.
Many traders base their tactics on your ignorance. They will tell you that no one is going to finance a car for 10 years. They will tell you that no one finances a used car for less than 7%. They will tell you that no one finances a used car without a down payment. All of these statements are wrong.
So how does one become a knowledgeable and savvy used car buyer? Find out first what type of car you want. Second, by doing your own credit report, you know your credit score before you even start buying a car. Third, find out what interest rates are currently available at local credit unions. It didn't take long as most credit unions posted their interest rates on their websites.
Now you can start shopping. At this point, remember that you are only looking and trying to make a comparison. You can search for what you want online: sort cars by price, mileage, year of manufacture, performance, etc. In addition, many car dealers offer lower prices online than on-site. If you tell a dealer that you've seen one of their cars listed online for price X, they should honour that price.