Kimi Raikkonen has become the jest winner of the 2013 season at Albert Park.
He led home Fernando Alonso and Sebastian Vettel who ensured the podium was an all-champion affair.
Felipe Massa finished 4th ahead of Lewis Hamilton in 5th and Mark Webber in 6th.
Twice leader of the race Adrian Sutil fell away in the final stint to finish 7th ahead of team mate Paul di Resta in 8th. Mclarens Jenson Button finished 9th and Romain Grosjean rounded out the points in 10th place.
Romain Grosjean set the quickest time in a rain affected Free Practice 3 at Albert Park.
His dry time of 1m26.929 was faster than Alonso, Massa, di Resta and Kimi Räikkönen.
The times were wholly irrelevant as rain fell at the circuit after 15 minutes forcing all the drivers to pit and remain in the garages.
Felipe Massa was the driver to go out for a full wet tyre run with 25 minutes remaining. Most drivers then took to the track for exploratory runs on both sets of wet tyre until the end of the session.
With just 10 minutes of the session remaining, Sebastian Vettel pulled off circuit with a hydraulic failure.
Sebastian Vettel lead the way at the end of day one in Melbourne.
His time of a 1m25.908 was quicker than team mate Mark Webber by just under two tenths of a second.
Nico Rosberg finished third, Kimi Raikkonen fourth and Romain Grosjean in the sister Lotus was fifth. Alonso’s Ferrari was sixth, whilst Lewis Hamilton ended the day seventh. Felipe Massa, Adrian Sutil and Nico Hulkenburg rounded off the top ten.
The Mclaren drivers languished in 11th and 13th after Team Principal Martin Whitmarsh admitted the car was unbalanced and difficult to understand.
The session got underway with all drivers, barring the Ferrari pair, heading to the track to continue their set up work from the earlier practice.
The Mercedes pair both made early mistakes pushing too hard and running off track at Turn One.
Giedo van der Garde’s session came to a halt on the hour mark after beaching his Caterham in the gravel. Jean Eric Vergne spun at Turn 4 with just half an hour to go.
Most of the teams switched to the softer compound tyre early on and found very little gain in time.
Sebastian Vettel went to the red striped tyre and got held up, but it wasn’t long before he set a quicker time, although he reported it was without KERS.
Lewis Hamilton tried challenging the Germans top time before locking up and going off the track at Turn 9.
With just 7 minutes remaining, the British driver put the Mercedes into the gravel trap after a mistake and lock up at Turn 7.
The day ended badly for Mercedes when Nico Rosberg pulled off the track after Turn 8 with a suspected gearbox problem with just 5 minutes left of the session.
Mark Webber ran out of rear grip in the dying minutes and spun his Red Bull after Turn 13.
The first practice session of the 2013 season ended with Sebastian Vettel on top.
The triple World Champion set a time of a 1m27.211 leading Massa, Alonso, Hamilton and Webber in the top 5.
The session started slowly with just the Marrusia and Toro Rosso cars running within the first half an hour.
The rest of the drivers then took to the circuit to begin their preparations for the weekend. There were minor errors from Sergio Perez, Lewis Hamilton, Pastor Maldonado, Jules Bianchi and Esteban Gutierrez who all ran wide off the circuit, whilst Guido van der Garde took to the grass at turn one. With just 2 minutes left of the session, Paul di Resta ran a tyre onto the dirt and slid of the circuit and into the gravel.
The big talking point was the degradation of the new Pirelli tyres after 10 laps, after which plenty of drivers gained significant oversteer, forcing errors into corners and at the exit.