German Nico Rosberg will leave the Williams team after Sunday's inaugural Abu Dhabi Grand Prix, the driver confirmed on Thursday.

Rosberg, the 24-year-old son of original 'flying Finn' Keke Rosberg, the 1982 world champion, said he would be sad to leave so many friends behind - and declined to make any comment on his future.

But he took the opportunity to make strong remarks about the standards of driving in modern Formula One - and demanded clarification from the organisers on what is, and what is not, allowed.

Rosberg has been linked with a switch to the champion Brawn GP team next year, but refused to confirm the switch was imminent.

He said: "It is my last race for Williams. And that is it really. It is a bit strange because for four or five years, it is the only team I have worked with, so it has been a long time.

"I get on with everybody really well, obviously, and a lot of respect has built up - with the mechanics and everyone. So it will be quite strange to leave."

He added: "I don't want to talk about my future. I just want to say that I won't be at Williams, because that is for sure."

And he then said that he would be more interested in talking about the standards of driving in F1 - shortly before bickering duo Jarno Trulli and Adrian Sutil, who crashed in Brazil two weeks ago, continued their row by arguing in public during an official news conference.

Rosberg said: "(Rubens) Barrichello, (Mark) Webber and (Kamui) Kobayashi all did exactly the same thing - defended too aggressively.

"With Webber, (Kimi) Raikkonen lost his front wing, with Kobayashi, (Kazuki) Nakajima had a massive off, which could have been much worse - you can really hurt yourself, marshals and others in that sort of accident.

"And with Barrichello, Lewis (Hamilton) ran into the back of his tyre. That was the third time - and it is not allowed to happen.

"It is Michael Schumacher who started this, like at Spa [in 2000], when Mika Hakkinen tried to overtake him and he ran him off the track. When the guy behind has made a decision [to pass] and the guy in front then moves over, it is very dangerous. You cannot do that.

"That was the first time I remember it being a dangerous issue, so it needs to be looked at and clarified from my point of view. I will be mentioning it in the drivers' briefing.

"I am not saying anyone has done anything wrong [in Brazil], because there has not been a clarification about it, but the view of the drivers needs to be taken into account and we say it is very dangerous. Something needs to be changed."