In just one week, less than a month before the first race of Formula 1's brave-new-regulations era in 2009, Ross Brawn's eponymous team didn't so much move the goalposts as completely change the game.
Honda had pulled the plug on its works team in December 2008 and by the time the Brawn-led management buy-out was completed in the first week of March '09, its rivals had long since been out testing.
The much-vaunted double diffuser was already in the news, as both Williams and Toyota had been testing with it. But Brawn had gone even further with maximising the effectiveness of its design through the way the whole rear of the car was conceived.
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