My ROI write up on RAV4 vs. KONA EV, but general enough for other vehicle comparisons:
https://dave.autonoma.ca/blog/2019/08/06/typesetting-markdow...
> assuming main panel doesn't need upgrading and only installing a 240V circuit.
A Load Miser can split the dryer circuit; charging happens overnight, so no usage conflicts. It was about $1,500 USD for my house to run a line from the attic. YMMV, but probably less expensive.
> You leave an extension cord more then once out overnight, it will get stolen
Vancouver is experimenting with curbside chargers.
https://vancouver.ca/streets-transportation/curbside-electri...
My ROI is now 7 years. The feeling of being off fossil fuels is priceless. (British Columbia is about 80% renewable.)