The Williams driver told Autosport website: “Next year’s car is definitely in aggressive mode, but it’s about whoever makes the tyres work better.
“It’s a make-or-break type of thing. If you think that the Honda was not a very good car (we had a terrible 2008 season) and whenever they put the slicks on at the end of the year, the car improved itself. It was a car that if it was fighting for sixth position, it was already fighting for fifth, and then they made such an upgrade [as Brawn] it went to first.”
In 2011, Pirelli will replace Bridgestone as the sole supplier of tyres for Formula One. Tyres, even more than engines and aerodynamics, are fundamental to a successful F1 car and all the teams will start with the same clean slate this season.
Barrichello added: “The Pirelli tyres could have a fundamental change on the cars aerodynamically, so whatever happens it will help some teams and it won’t help some others.”