will need 240 volts at 32 amps.
That's wild overkill, IMHO. Just make sure you plug in as soon as you get home(before the battery cools off), and you could find that even a 120/15A line would be enough. It certainly depends on how far you travel daily.
You MIGHT have trouble charging when temperatures dip below zero out, for that 1-2 nights a year that might happen. Certainly not something you should bother heating your garage for.