You can sell it to another person in a private sale, or you can trade it in toward the downpayment on a new car. No matter which avenue you pick, you want to maximize your car's value. We've put together a few trade-in tips to help you get the most for your current ride when buying a new car. You can trade your car in toward a new lease. Leasing a car allows you to get behind the wheel of a new vehicle for less than what it might cost to finance. Or, you can simply trade in your auto to a dealer and purchase a new one. Trade-ins are fairly common – the process is fast and maybe the easiest way to get rid of your used car. However, some people avoid trade-ins entirely, preferring to weed out potential buyers themselves than bargain with a dealer.