After the long break following the inaugural Russian Grand Prix, Formula One flew to North America for the second Grand Prix to be held in the Circuit of the Americas.
Lewis Hamilton was on top of the time sheets for the first practice session. His team mate Rosberg, trailing in the Drivers championship, was closely behind. The Mercedes team, already constructors champions, was well clear of the competition yet again.
Jenson Button was third fastest for McLaren. The Woking team have been more competitive as of late, Magnussen was fifth. The two were split by Daniil Kvyat for Toro Rosso.
A few incidents to make mention of include spins by Sutil and Maldonado, and a tyre failure suffered by Romain Grosjean.
Both Marussia and Caterham were absent from practice. Economic problems for the teams put in question their participation in what remains of the season, and in the future of Formula One.