Coulthard tight lipped on future

The former McLaren driver, who is believed to have reached an agreement to race for RBR next year although he has yet to sign a contract, said that there would likely be no developments relating to his own future until the start of next year.

Speaking exclusively to autosport.com about the test and his future, Coulthard said: "There are a bunch of good people here who have been given a lifeline by Red Bull - and I am impressed with the very realistic approach of Dietrich Mateschitz (Red Bull boss) to this new venture.

"I am satisfied with how these two days have gone but as to what is going to happen, nothing is planned until the new year. We will have to see how it is going to progress and at the moment I cannot say anything more.

"It was great to drive a grand prix car and great to work with a bunch of highly motivated people. Like I said, we have a very realistic approach to this matter."

Although RBR appears to be Coulthard's only option to race in F1 next year, he has made it clear that he will not beg the team to give him a drive.

"I am not into lobbying," he said. "I know what I can bring. I know what it needs to win a grand prix. I know what it means to be in a championship winning car. So let's see."

Coulthard's hopes of persuading Mateschitz will be boosted by the fact that Christian Klien, who is tipped for one of the seats at RBR, desperately wants the Scotsman to be his team-mate in 2005.

"Things look good for me but nothing is signed yet," said Klien. "But if I am around and David gets signed then it will be so good because he has so much experience. It is something we need and I can learn so much from him."

Klien will be joined by Neel Jani for testing on Friday.