Starting from a grid position of 14th, Button made steady progress up the field after a series of impressive overtaking maneuvers.
Saturday will see final qualifying for the fifth round of the F1 season, with grid position considered crucial on the Spanish circuit.
For example, the creation of coupled-predictive models allow for understanding, days in advance, the impact that a storm would cause on the electrical grid and preemptively position crews and resources to facilitate restoration efforts.
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For the first time since October 2006, neither a McLaren nor a Ferrari sits in pole position on the grid.
Kubica, who has two second-place finishes this season, also played down his chances of capitalising on his front row position on the grid.
Once in the applications view, tapping any icon launches the associated app (or bookmark), while holding any icon lets you move it to another position on the grid (or remove it by pressing a little red X, if present).
The upshot is that utilities have accumulated huge losses and aren't in position to invest in grid upgrades.
Which meant that Alonso had his work cut out for him after a mediocre qualifying session put him ninth on the grid for the race with Vettel in pole position.
Vettel's second success of the season leaves him 25 points behind world championship leader Jenson Button -- who disappointed the home fans by finishing down in sixth place, the position he started from on the grid.
From his position at the head of the grid, Vettel never looked in any danger of being caught and -- apart from briefly conceding his lead to Webber after making his second and final pit stop on lap 45 before regaining it two laps later -- the result was never in doubt.
Alonso ended with the fastest time but was later handed a five-place grid penalty -- with eventual race winner Hamilton elevated to pole position.
The partisanship was overt and when the mechanics came past our position, pushing trolleys laden with tyres towards the starting grid, there was cacophonous applause for the Ferrari crew.
Stoner won that event in Jerez, having started fifth on the grid, but finished third in the season opener in Qatar despite claiming pole position.
Button's McLaren started fourth on the grid, as Red Bull's Sebastian Vettel set the pace in qualifying to claim pole position.
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