Ha! Good point - in this instance, I bet it will be plugged in every second it's not in use... and the Focus actually does charge up in 4 hours... so it's probably good for around 100 miles on that track.
I’m thinkin’ there’s a reason Ford chose a 3/4 mile track and not The Glenn, Pocono, etc.
Imagine if they have to make laps to dry off the track....