I plan on having a used 2015 Model S by March of 2021, and will be keeping my 2016 Smart ED. I have a 60 mile round-trip commute to work, and it'll be nice to have 2 electric vehicles to keep the mileage down on both cars. My "other" car is a 2013 Infiniti M37X, and I now feel guilty driving a vehicle that uses gas.