Captain Ricky Ponting believes Australia have been vindicated as the best team on the planet after they claimed the one-day section of the Super Series.
Ashes defeat put into question Australia's billing as number ones but they dismantled the cream of the other major cricketing nations by 55 runs to take an impregnable 2-0 lead into the third and final indoor contest.
Such an outcome has strengthened Ponting's pre-tournament belief they are untouchable when they get things right.
"We are number one anyway in one-day cricket," said Ponting. "I don't think we had to prove anything to anybody else.
"If you look at their team it is an unbelievably good one and there was a great challenge for us.
"We heard some things coming into the tournament that we were a bit vulnerable and we have made a few points which is very satisfying.
"I still feel we are the best cricket team in the world in both forms of the game.
"What we have done over the last couple of days has proved we are in the one-day game and we have a Test match in a few days' time which will hopefully prove we are in the Test format as well."
Adam Gilchrist smote four sixes in racing to the fastest hundred by an Australian in one-day international history - off just 73 balls - to put his own poor batting form behind him.
His breathtaking strokeplay emphasised the quality of an England attack which denied him a solitary half-century throughout the five-Test series.
"I certainly felt relieved getting runs," said Gilchrist, following his 12th limited-overs century for Australia. "Like everyone coming back from England I had a lot to think about and plenty of hard work to do.
"It just shows how well England bowled to us on a consistent basis when you consider that the bowling attack we faced here is as good as you can get."
Despite facing an improbable 329-run victory target - just one run shy of Australia's world-record chase against South Africa five years ago - World captain Shaun Pollock had lived the dream while Chris Gayle was in tandem with Kumar Sangakkara.
"I really thought we had it in the bag at one stage," South African Pollock said. "We were really on track and losing Kumar to one of two run-outs was a big blow for us.
"We probably gave them too many in the field as well but when Gilchrist attacks like that it is pretty difficult to cope with.
"He is a lethal player up front and can do some serious damage."