My lease on a MY15 ED ends tomorrow.
Because of the LOW MAINTENANCE requirements of an EV were it not for BAP and the Annual Service this car could have easily gone 3 years without seeing the smart Center! That being said, my advice would be to find a low mileage newer model with remaining warranty (regardless of your distance from a service Center) to give you some peace of mind.
Or, if you truly want to bottom shop
- as Tony suggests, "If you are paying under $5,000 for the car it's most likely more than 4 years old and out of warranty."
Find the lowest priced ED out there with the color/option that appeal to you and drive the wheels off.