Toto Wolff says Lewis Hamilton is "in a league of his own" after he took control of both practice sessions on Friday.
"His one-lap pace was really good and he took the ultrasofts for 17 laps and was stable. I'm happy” said Wolff.
Hamilton was the fastest by over half a second.
His lap of 1:23:620 in the second session was within one of the quickest ever recorded at Albert Park.