Whenever you sign for Car Loans, you should know exactly what you are getting into. The first thing to make sure you understand is the APR. This is the percentage rate of interest, calculated annually, that you pay on your loan, plus lenders fees and charges. Ask what the total cost will be, once you make all payments, including fees, and use this number to compare loans offered to you. Secondly, make sure you read the fine print! Sometimes there are hidden terms in there that will cost you, such as a requirement for credit insurance or penalties for refinancing or paying off your loan early.