Lewis Hamilton continued his good form at the Hungaroring by topping the FP2 timesheet after also being quickest in the morning.
The McLaren driver set his best time in the opening period of afternoon practice as a brief but heavy rain shower in the middle of the one-and-a-half-hour session then made the track too damp to permit further dry tyre running and the times naturally failed to improve.
Although the conditions were sunny and hot at the start of the session, teams were aware of the threat of thunderstorms and a busy opening to the session saw the top time change hands frequently, with Kimi Raikkonen in charge early on, before he was eclipsed by the Ferraris of Fernando Alonso and Felipe Massa. Then, when the drivers switched from the prime medium tyre to the soft option, a sequence of others including Jenson Button and eventually Hamilton with the lap that stood at the top until the session ended.
Hamilton was followed by Raikkonen, who put in a lap just 0.185 behind the McLaren driver, and in third Bruno Senna, who ended up 0.258 behind the 2009 Hungarian GP winner. The top three were followed by Massa, Alonso and Button.
When the rain fell, it did so with a heavy burst that caused a mass retreat from the track. When the cars did re-emerge it was on mix of full wet and intermediate tyres. Michael Schumacher was one of those who opted for inters and it proved the wrong choice for him as he slid off track and into the tyre barrier at Turn 11.