Circuit Notes by Peter Hubbard: Red Bull Back on Top After Second Practice Session in Austin

In what has become commonplace at Grand Prix race practice sessions in recent years, the No. 1 and No. 2 Red Bull cars of Sebastian Vettel and Mark Webber finished one-two in Friday afternoon’s Formula 1™ practice session at Circuit of The Americas. Vettel was clocked rounding the 20-turn track in just 1:37.305, Webber at 1:37.420.