"Also, Dietrich's interest will focus on Red Bull Racing, therefore the support for STR will become smaller and prevent the team from improving further from sixth. I don't want to decline, that is not in my nature."
The 2009 season sees the introduction of Kinetic Energy Recovery Systems (KERS), the re introduction of slick tyres and aerodynamic Saucony Jazz 91
50 percent stake in the team he sold to the former F1 driver ahead of the 2006 season.
Explaining his decision to sell, Berger said that he doubted the Faenza based outfit could make further progress up the grid given next year's rule changes.
Seen as the 'junior' outfit to Red Bull Racing, Toro Rosso nevertheless enjoyed the Reebok Yellow
Red Bull owner Dietrich Mateschitz announced on Tuesday that he was buying back the Saucony Xt600
changes designed to reduce downforce.
better season in 2008 and finished sixth in the Constructors' Championship.
Gerhard Berger has revealed that his decision to sell his stake in Toro Rosso was based on a belief that the team might struggle next season.
They also scored their first victory when Sebastian Vettel took the chequered flag in the Italian Grand Prix at Saucony Cream Monza.
STR might struggle
Saucony Kinvara New York