Like any used car, buying a used Tesla will come with its own unique set of challenges like ensuring the car and its powerhouse battery pack are still in good working condition, which might be difficult to do. And unlike many electric vehicles — which tend to depreciate rapidly in value — Teslas tend to depreciate less than the average. According to the automotive search engine ISeeCars.com, which analyzed the sales of off-lease cars , the average new sedan (with either electric or internal combustion engines) depreciates by 39% in the first three years, while electric vehicles depreciate at a rate of 52% in three years. But a Tesla Model S depreciated by only 36.3%. You could look at that as a positive if you’re buying a new Tesla and think it’s good for a car to hold its value. Or you might see it as a negative if you’re looking for a sweet deal on a not-too-old Model S.