true, but most home panels are in the garage, if not the neighboring ultility room. Also, many of the biggest breakers in a panel are actually a tad overkill and often run to things that have breakers of their own at the unit. Just today I was testing a hvac unit that called for a 60amp breaker. The panel was a GE panel and the only 60 amp they make takes up 4 spaces and I just can't swing it I was maxed out ...w/ 2 sub panels! A 50 amp takes up 2 spaces...and I cranked the heat until it went into emergency heat mode and checked the draw at the heat pump itselt, It was only drawing 41 amps at it's worst. A 50 amp breaker will do the job. For a single/double car garage, it shouldn't cost that much to get a 40amp service near the garage door. If your panel is out of room, you can swop out some single spaced breakers for double "piggyback" breakers and free up a few slots. Also, good thing in my area, if you request power upgrades to your house, it's on your dime. But...if you incread the load and the power from the company can't keep up, it's up to them to upgrade on their dime.
I know of waterfront marinas/restaurants that shelled out 200-300k to have poles and lines upgraded to 3 phase. All my boss did was keep adding crap until transformers blew and he was shut down for 2 days....next thing you know, the utility company upgraded everything.
It's all on them to provide...
and more than anything....if you can afford the car, you damn sure better be able to afford the hookup!
Just like drivers of benz and beemers will soon be driving junk if they don't/can't shell out for average annual maintenence. (even low grade crap!)