looks too short and track may not be wide enough.
Well, I was concerned about the width, but I was also concerned about the length until I read that it's 2.3 miles, which is roughly the same length of Mid-Ohio and Mid-Ohio works great for Grand-Am, American Le Mans Series (ALMS), and IndyCar, so it might not be such a stretch for it to work for Formula One. I also just read that IndyCar has done testing at Barber Motorsports Park and has agreed to race there, and supposedly it was going to be the official test track for USF1.
So, perhaps with some facility upgrades, it might not be so unreasonable.