22 September,2012 09:14 AM IST | | AFP
On the floodlit street circuit, damp after heavy afternoon rain, the two-time defending champion clocked 1min 50.566sec in the first stint and then lowered it to 1:48.340 in the later run. McLaren's Jenson Button was second quickest in the later session followed by the championship leader, Fernando Alonso of Ferrari.u00a0
Sebastian Vettel
