So gas here is sitting at $4.29 for the last few weeks. With an electric car, two electric bikes, an electric chainsaw, lawnmower, and weed whip, we haven't bought any gas in almost five years.
Our Bolt is still working perfectly, at 43K miles. Total maintenance expense, so far, has been a gallon of windshield washer fluid, and a few cups of Tide for washing it. I rotate the tires every 7500 miles myself, for something to do.
Lifetime energy use, from the wall, has been 3.3 miles/kWh or 303 Wh/mi. The charger is 95% efficient, so car average is 288 Wh/mi. We don't skimp on HVAC use, and don't hypermile, other than keeping the tires inflated.
We pay 12 cents a kWh, so are spending 3.6 cents a mile. You'd have to be getting 119 mpg to match us.
GM keeps telling us we can come in to get a new battery that is 8% higher capacity, and restarts the 8 year, 100K mile warranty clock. I think we will wait until we hit 50K miles, at least. Some gig drivers have actually gotten the recall battery after getting 150K out of their original battery.