Inside COTA's Turn 1 clubhouse and its plans to build a second track

For spectators and TV viewers tuning into coverage of Formula 1's United States Grand Prix, it's been hard to miss. Turn 1 of the Circuit of the Americas has a distinctly different look to it this year with the addition of a mammoth multi-storey clubhouse. Connected to the main paddock area via a cable car that crosses the track, this weekend the new hospitality structure serves as an extension…