Sebastien Bourdais sits in the STR4 during testing today in Barcelona. The car was unveiled this morning, with Bourdais and Buemi present to pull the covers off and pose for photos. All involved say they want to emulate the success of 2008, but Buemi in particular knows that he can't be compared to Vettel. Team boss Franz Tost also revealed the team will be increasing staff in the design department during 2009.