Just wanted to make sure you understand that the smart car does not come with a battery. The battery is provided as a lease only. Yes you can buy the car, but you must continue to lease the battery.
Another reason that I chose to jump in here was to invite you to my listing. I have a 2012 i-miev SE for sale and the warranty is for 10 years or 100,000 miles from Mitsubishi. The warranty is tracked on Mitsubishi's website based on the original in-service date of the vehicle, not by model year.
If you are interested, please check out my ad at: https://cargur.us/kllzz
I'm asking a lot less than $8000
btw: In case you're wondering, no I'm not dissatisfied with the i-miev, on the contrary I'm very fond of them. I have three, and 7 vehicles total. insurance on 7 vehicles is eating up all my lunch money. So when you have more than you need, more than you can use, something's gotta go!