Been meaning to get involved here because my wife and I want to get an electric vehicle.
A bit of off topic - my friend has a Tesla (series 3) is currently without power and has been been for 3 days since we had some high winds here in southern CA. He has a Jackery 1000 that he charges with his Tesla, then uses that to keep his refrigerator/devices charged, then heads off to the super charger to charge his Tesla. A near full Jackery charge takes his Tesla down from 250 miles to 225 miles.
That's some pretty great utility there. He showed me a video of him watching some TV on his Tesla screen too.
My wife and I have 2 civics - almost completely paid off - I think our payments together are in the high $700s (total, for both cars). We spend about $150-$160/mo on gas. (Used to be 2.5x but I don't drive anymore). So $860/mo - if we got rid of our cars, got an electric vehicle - I think the $ would work.
There are some new vehicles coming out that will have the capability to supply power back out. Like the upcoming Ford Lightning (truck) has an a connector option on the charger, that lets you connect the car and power your entire house! And keep in mind these vehicles have massive batteries, like that Jackery is 1kW vs. a Model 3 that has an 82kW battery
Gas savings can be pretty terrific, the thing that totally throws off the comparison is you can get an EV that's as fast as a high performance car, but has better consumables cost than a tiny econobox.
It's pretty easy to get a sense of the cost, savings, etc., just take a car like a Tesla Model LR, it's documented at 358 miles for a full charge, that's an EPA estimate, so just call it a nice even 300 to accommodate real world range (running the heater, etc.) With an 82 kWh battery, that's 300 miles at the cost of charging 82 kW, if your power rate is $0.11/kW (that's actually mine), that's ~$9 to go 300 miles - to think about it another way, if gas was $3/g, the ICE MPG equivalence would be 100MPG.
Of course that doesn't factor in the home charging convenience, the brisk performance, the quiet, emissions free operation, the superior design opportunities when you remove transmission, gas tanks, etc.
I see you're in CA, I think you have a lot of options for off peak charging at a notable cost reduction, and that's all easily coordinated through the car interface, smart charging, etc.