Small 1970s ranch house, 100A panel already pretty full, so a dedicated 40A circuit for the Model 3 SR isn't a small ask for us. My electrician quoted the dedicated circuit and said that's the only way he'd do it, no other option offered. My cousin, who's also a licensed electrician in a different state, told me at Thanksgiving that plenty of people just share the dryer's existing circuit with the charger as long as you don't run both at once, and that it's done all the time in older homes with tight panels.
I don't want to gamble on our only house, but I also don't want to pay for a panel upgrade if there's a legitimate cheaper path. What did people in similarly tight panel situations actually do, and did sharing a circuit ever bite anyone?