Length: 5.303 km
Number of Laps: 58 (307.574 Km)
Best Lap: M. Schumacher - 1'24''215 (2004, Ferrari)
Record Pole: M. Schumacher - 1'24''408 (2004, Ferrari)
2005 Pole: M. Webber - 1'28''279 (Williams)
2005 Podium: G. Fisichella - R. Barrichello - F. Alonso

At a cold and overcast Albert Park circuit near Melbourne, where the circuit is damp following sporadic rain showers on Saturday morning, the light to signal the start of the final one-hour practice session turned green at 11am.

The FIA declared the track officially wet.

''We're going to be running the extreme wet (Michelin) tyre,'' informed Honda's Friday driver Anthony Davidson, who has already played his role in Oz.

Bridgestone runner Felipe Massa (Ferrari), who spun early, was running intermediate tyres, while teammate Michael Schumacher trialled the deeper-treaded wet weather version.

Most of the field turned laps early on, although Williams' local hero Mark Webber - again - seemed content to stay in the garage until 15 minutes in.

''It's really dangerous out there,'' Jenson Button said on his radio, just as Fernando Alonso surfed across the gravel through turn-1.

Spins, therefore, predominated the session, with Alonso warned on his in-car radio that the hazard of slippery painted traffic lines on the track is complicated because some of them are painted black.

MF1's Christijan Albers came unstuck and had to abandon his beached car, even though the circuit had almost dried with 20 minutes to go.

''F1 cars can really be horrible to drive in these conditions,'' England's Davidson quipped. ''The tyres just don't operate without enough heat in them.''

Renault's Alonso, though, entered the track with fifteen minutes to go wearing dry tyres, but he struggled to meet the pace.

With a few minutes to run, light drizzle was again dropping, but the pace only heated up; BMW-Sauber's Nick Heidfeld and Jacques Villeneuve timed it just right and dominated the timesheets, with Vitantonio Liuzzi completing an odd top-three in his Toro Rosso.