Jenson Button led Brawn GP to an astonishing one-two at the season-opening Australian Grand Prix on Sunday in Formula One's most successful team debut for 55 years. The 29-year-old Briton, written off by some as overpaid and overrated after two dismal seasons with Honda, cemented a fairy-tale comeback that left team owner Ross Brawn lost for words. Brazilian teammate Rubens Barrichello started and finished second, but only after Red Bull's Sebastian Vettel and BMW-Sauber's Robert Kubica drove each other off the track while fighting for the runner-up position with three laps to go. The safety car came out and led the field until the final corner of the race. McLaren's world champion Lewis Hamilton, starting last on the grid after a catastrophic gearbox failure in qualifying, showed his fighting spirit by clawing his way back to third place while the Ferraris of Felipe Massa and Kimi Raikkonen failed to finish. Italian Jarno Trulli, who had started 19th and in the pit lane for Toyota, finished third but was demoted to 12th after stewards ruled he had overtaken Hamilton illegally. No Formula One team had won on their debut since Wolf in 1977 while the last to secure the top two places first time out was Mercedes, Brawn's current engine suppliers, in 1954. Fifty five years on, Button and Barrichello followed in the footsteps of the great Argentine champion Juan Manuel Fangio and Germany's Karl Kling. Button led from pole to chequered flag, despite two safety car periods, to take his first victory since Hungary in 2006 and score more points in a single afternoon than he had in two years with Honda. The victory marked a remarkable turnaround for a team which was fighting for its Formula One survival earlier this year after Honda pulled out. With Barrichello well behind in fourth place, the one-two looked an impossible dream until Kubica tried to pass Vettel on the outside and Vettel drove into him. Germany's Timo Glock, who started behind Trulli in the pit lane after Toyota was disqualified from qualifying for using an illegal rear wing, was elevated to fourth ahead of Renault's Fernando Alonso and Williams' Nico Rosberg. Toro Rosso's Swiss rookie Sebastien Buemi became the 58th driver to score on his debut with seventh place while French team mate Sebastien Bourdais took the final point. McLaren's Heikki Kovalainen retired after being caught in a first lap coming together with Australian Mark Webber's Red Bull and Nick Heidfeld's BMW-Sauber. The first safety car came out on the 20th lap after Williams' Japanese driver Kazuki Nakajima crashed into the wall with Button already 36.4 seconds clear of Vettel. Red Bull were fined $50,000 and Vettel demoted 10 places on the starting grid for the next race in Malaysia for causing the incident with Kubica.