Lewis Hamilton has once again put Mercedes on top of the timesheets during the final free practice session for the 2014 United States Grand Prix at the Circuit of the Americas in Austin. Hamilton posted the fastest lap of the week so far, 1 minute 37.107 seconds, which was 0.8 seconds faster than what his team mate Nico Rosberg had managed.
The two Williams drivers Felipe Massa and Valtteri Bottas were best of the rest, finishing the session more than one second behind the leading Mercedes.
