Berger: STR undecided on engine options

Although the team are understood to be edging closer a deal to run Ferrari engines next year, team co-owner Gerhard Berger insisted on Friday that the final choice was still some way off.

"We still don't know if it is going to be a V10 Cosworth or something else. We have to wait and see," he told autosport.com. "I think we will know something in the next eight weeks."

Berger said he was baffled by reports which quoted him as saying that Red Bull Racing's possible deal with Renault, which would free up a Ferrari engine supply for his team, was '80 percent done'. He claimed that Red Bull Racing's plans for the future were nothing to do with him.

"I deal only with Toro Rosso, and Red Bull deals with their own things," he said. "I don't know where these stories came from. I just heard now that I was supposed to have said something.

"You have to ask Red Bull about their engines. The statement definitely did not come from myself."

Red Bull Racing are in talks with Renault about a supply of customer engines for next season, with sources suggesting that the talks are at an advanced state.