Britain's Jenson Button led a Brawn GP one-two triumph at the Spanish Grand Prix on Sunday for the Formula One championship leader's fourth victory in five races.
For the ninth year in a row, victory at the Circuit de Catalunya went to the driver starting from pole position with Button taking the chequered flag 13.0 seconds ahead of Brazilian team mate Rubens Barrichello.
Australian Mark Webber was third for Red Bull, his second podium finish of the season, ahead of German team mate Sebastian Vettel.
Spain's Fernando Alonso had the home crowd roaring when he snatched fifth place on the final lap from Ferrari's Felipe Massa.
Brazilian Massa, who led for a lap after the first pitstops, had to slow in the closing laps to save fuel with the team warning him that he risked not making it to the finish.
The three points were still the first of the season for last year's overall runner-up.
Germans Nick Heidfeld in a BMW-Sauber and Nico Rosberg for Williams were seventh and eighth respectively.
Button, now with five career wins to his credit, was overtaken at the start by Barrichello but forced himself back in front of the Brazilian with an astute strategy shift from three stops to two.
The Briton is now 14 points clear of his 36-year-old team mate, who had been tantalisingly close to his first win since he was Michael Schumacher's team mate at Ferrari in 2004.
Ferrari's 2007 champion Kimi Raikkonen, last year's winner in Barcelona, retired after less than a third of the race while McLaren's world champion Lewis Hamilton was ninth and lapped by his winning compatriot.
The safety car was deployed for four laps after a pile-up involving Toyota's Jarno Trulli, both Toro Rosso drivers and Force India's Adrian Sutil as the field powered through the second corner.
The following was the result
1. Jenson Button (Britain) Brawn - Mercedes 1 hr 37 min
19.202 secs
2. Rubens Barrichello (Brazil) Brawn - Mercedes +00:13.056
3. Mark Webber (Australia) RedBull - Renault 00:13.924
4. Sebastian Vettel (Germany) RedBull-Renault 00:18.941
5. Fernando Alonso (Spain) Renault 00:43.166
6. Felipe Massa (Brazil) Ferrari 00:50.827
7. Nick Heidfeld (Germany) BMW Sauber 00:52.312
8. Nico Rosberg (Germany) Williams - Toyota 01:05.211
9. Lewis Hamilton (Britain) McLaren - Mercedes 1 lap
10. Timo Glock (Germany) Toyota 1 lap
11. Robert Kubica (Poland) BMW Sauber 1 lap
12. Nelson Piquet (Brazil) Renault 1 lap
13. Kazuki Nakajima (Japan) Williams - Toyota 1 lap
14. Giancarlo Fisichella (Italy) Force India - Mercedes 1 lap
r. Kimi Raikkonen (Finland) Ferrari 49 laps
r. Heikki Kovalainen (Finland) McLaren - Mercedes 59 laps
r. Jarno Trulli (Italy) Toyota 66 laps
r. Sebastien Buemi (Switzerland) Toro Rosso - Ferrari 66 laps
r. Sebastien Bourdais (France) Toro Rosso - Ferrari 66 laps
r. Adrian Sutil (Germany) Force India-Mercedes 66 laps
(r = retired)
Fastest Lap: Rubens Barrichello, 1:22.762, lap 28.