Of all the youngsters queued at F1's door, only Sebastien Buemi is ready to make his debut for Toro Rosso next year.

That is the claim of DR Helmut Marko, the Red Bull motor racing advisor who is making no secret of his quest to accommodate the Red Bull test driver and GP2 racer at the energy drink's de-factor 'junior' team in 2009.

STR, co-owned by Gerhard Berger, has at least one vacancy, due to the promotion of Sebastian Vettel to Red Bull Racing next year.

"Of the new generation, Sebastien Buemi is the only one who can say he is really ready.

"For the others, formula one is still some distance further away," Marko is quoted as saying by Switzerland's Motorsport Aktuell.

However, Berger and Toro Rosso team principal Franz Tost are known to be very interested in Bruno Senna.

Also among the GP2 field, Senna claims his management has been in talks about the future with every formula one team, with the exception of Ferrari.

Reportedly among his best options for 2009 are a race debut with Toro Rosso, or a test driving berth with McLaren, with whom he shares the hotel chain Hilton as a sponsor.

"I am seeking a long-term commitment," Senna is quoted as saying. "It makes no sense to look for something for only one year and then stand with empty hands in 2010."

Source: GMM