> How often do you actually drive 200+ miles in a single day?
At least once a week we're close enough that 200 miles is our "with a reasonable safety margin" number.
BTW - when I'm driving 400 miles in a day, I don't spend an hour eating lunch on the way. (It's very hard to average 50 miles an hour, so 400 miles is around 8 hours. I've actually done far more, and you can't do that if you're off the road.) And, why are you assuming that the lunch place will have the relevant charging station?