First, leasing a used car is set up almost identically to leasing a new car. The basic structure is the lessee (customer) is effectively financing the difference in the sales price of hte vehicle and the residual value of the car. The residual values are determined by the lender, or by a third party chosen by the lender. This value is what the lender is estimating the car will be worth at the end of the term of the lease. This is where there is a difference in a new and used car, the residual values in new cars are set by the Manufacturer and are percentage point based, while used car values are specific to the model and mileage amount.
Just like in new car leasing, the customer always has the first right of refusal to purchase the vehicle he or she has leased at the end of the term at the set residual value. This is a moment where a lease can be a huge benefit because it is possible the residual was set too low and the customer may be able to purchase the car for far below market value.
The second thing to consider will be the pros and cons of leasing and buying versus the cost difference between leasing a used car and buying a used car. Every customer should know what the costs will be for buying a vehicle through traditional financing before committing to a lease. This applies to both new and used car leasing, but is more important in the used space because of the swing in residual value based on a used car's existing mileage at the time of purchase.