Jenson Button moved to the top of the times to lead the way after a dry second free practice session in Istanbul ahead of the Turkish Grand Prix.
Button was near the top of the times throughout the session and eventually posted a best time of 1min 26.456secs which was enough to edge out the Mercedes of Nico Rosberg by just 0.065secs.
Lewis Hamilton and Michael Schumacher were third and fourth as McLaren and Mercedes proved to be the cars to beat in the first dry session of the weekend, while Mark Webber slotted into fifth place for Red Bull despite spending much of the session focusing on longer runs.
Webber was the only Red Bull to appear in the session, with Sebastian Vettel forced to sit out the entire session as the team worked to repair the damage he sustained in his accident in FP1.
Felipe Massa was the leading Ferrari in sixth place ahead of Vitaly Petrov, Paul di Resta, Sergio Perez and Adrian Sutil – the latter turning his first laps of the weekend after missing the opening session to allow Nico Hulkenberg to use his car.
Fernando Alonso was down in eleventh place after a troubled session where he spent time in the garage with a hydraulic issue and then suffered a spin at turn six. The Spaniard was at least able to keep his car out of the barriers, unlike Pastor Maldonado who damaged his car for the second session in a row after being caught out by a damp section of circuit at turn eight.
Down at the rear of the field, there was encouragement for Lotus as Jarno Trulli lapped quicker than the Sauber of Kamui Kobayashi.