Championship leader Jenson Button of Britain, in a Brawn GP, topped qualifying on Saturday to secure pole position for the Formula One Spanish Grand Prix.
Button, who has won three of the four races this year, clocked a time of 1min 20.527sec in the third qualifying session to claim the number one spot on the grid ahead of German Sebastian Vettel, in a Red Bull.
Brazilian Rubens Barrichello, Button's teammate, took third in qualifying with another Brazilian, Felipe Massa, the first of the Ferraris in fourth.
Australian Mark Webber was fifth in a Red Bull with German Timo Glock sixth in a Toyota. Italian Jarno Trulli was seventh in a Toyota while Spain's two-time world champion Fernando Alonso was eighth in a Renault.
German Nico Rosberg in a Williams and Poland's Robert Kubica in a BMW took ninth and 10th respectively, the last two places on the grid.