ELROY, Texas -- More than 58,000 fans watched Friday's first round of Formula 1 practice sessions at Circuit of The Americas.
Scuderia Ferrari s Fernando Alonso clocking the fastest time of 1:38.343 during practice session one. Reigning World Champion driver Sebastian Vettel of Infiniti Red Bull Racing ruled the time sheets in session two, with a top time of 1:37.305.
Qualifying sessions begin on Saturday.
Go here to see check out the pictures from Friday.