Meanwhile, Brawn chief executive NickFry thinks both drivers are capable of winning the 2009 drivers' championship following their results in Valencia.
The pair sprayed champagne while Red Bull team boss Christian Horner, three-time world champion Sir Jackie Stewart and Mercedes chief executive NickFry were also on hand to mark the unveiling.
The Brawn GP team was rescued from the brink of bankruptcy by Brawn and NickFry after Honda withdrew from Formula One at the end of 2008 due to the economic downturn.