We are unfortunately looking at going the other way, from one to two. Seems stupid, given I now work remotely so don't have an office to go to.
But our parents are getting older and need occasional help, so one of us being able to shuttle a couple hours to them, without leaving the other at home with no way to do DS's school (if weather bad)/soccer (if weather good)/friends/museums/etc is becoming a problem.
A rental at $4-500 a pop for 4 days (for a sub/compact!) means it won't take many trips per year before we'd cover depreciation and insurance for the 2nd car and then we don't deal with the rental car shortages.
Not cheap, because no long-range EV is cheap. I thought we had a winner with a used bolt, but they keep re-lighting themselves on fire after chevy fixed them... so we're thinking maaaaaybe a bolt isn't for us.
I'm sure at some point we'll drop back down to one. We've so far made it 21 years on a single car, I'm sure we can do it again. If nothing else, likely when DS goes off to school we'll end up sending a car with him and be down to one. Or the parents will eventually pass or move closer and then we won't need both cars. Or the fit will finally get too expensive to be worth repairing for the amount of use we're getting out of it and we'll sell it. Someone can get one with a worn out motor from the southwest and drop our "like-new" (<100k miles) one in it.