SC_FreaksFormula One’s annual visit to America at Circuit of the Americas in Austin, Texas ended Sunday with a reported successful promotion. There were reports Sunday that some 250,000 people attended the race weekend including 80,000 at a Taylor Swift concert Saturday night. These numbers are critical. Attendance fell last year for several reasons including rainy weather. That dip in revenues threatened this year’s race. But it appears some of those concerns have been met. Listen…