Thinking of buying a used car? Used cars can be a very smart and affordable purchase as long as you do your due diligence before buying. If you are buying from a person instead of a dealer here are two things to keep in mind. First, be sure to know what the value of the car is. You will want to research what the trade-in value of the car at a dealership to compare and contrast the price. Next, if you’re purchasing from someone you met online from a place like Ebay see what the seller’s ratings are. Go further by reading the actual written reviews of others to see what they had to say about their experience.