Buying a new vehicle is a complicated and expensive process. One of the biggest decisions you have to make as a buyer, aside from what type of car you want, is whether to buy or lease. Each option has its own advantages and drawbacks, but leasing can be difficult to understand without some prior information. Function A lease is essentially a long-term rental. You pay a monthly bill for use of a car over a lease term, which is usually around three years. During that time, you have an allotted annual mileage (often 12,000 or 15,000 miles)...