Mark Webber Q&A

you said you lost your passport. Have you found it? How did you get through so many customs checks without it?Colin Harrold, UK

I haven't found it. I only had to get through one border control on the way back from China, and that was in Glasgow. I flew to Dubai, then to Rome, then drove to a different airport in Rome, then a private plane to Nice, then a private plane to Glasgow and a helicopter to my house.

I certainly did have to fill in a bit more documentation up there. But thank God a bit of common sense did prevail. I certainly got punished for losing it in terms of headaches, but they let me in, which was nice of them.

To improve overtaking, do you think a reversed grid based on championship points would work?Alex, UK

It would be a pretty good spectacle but in terms of the DNA of F1, it is totally not the right direction for me. That's just like a handicap system.

We saw Lewis have a reasonable run through in Malaysia from the back but some of the other guys didn't have so much joy because they don't have an F-duct.

We saw Lewis got stuck up behind Adrian Sutil and that was as far as he got without strategy becoming involved. And that's at one of the best tracks in the world for overtaking.

So, yes, I'd be the first to admit if Valentino Rossi and Casey Stoner start at the back of the MotoGP grid it's going to be interesting to watch them come through.

But week-in, week-out I don't think that's the way forward. I think we need to look at other ways to address overtaking and have the fast guys start at the front and racing each other.

What do you think of Australia's chances at the World Cup this summer?Roger Clarke, Reading, United Kingdom

They've got a tough group . If they can get through that, and finish second and England win their group they'll play in the next round. I'd like to watch that.

Before a race, the drivers drink a lot. Do you never have to go to the loo in the race?David Vlieghe, Belgium

I have certainly been busting to go the loo in the car, certainly in the early parts of a grand prix, but that means I've made a bit of a mistake clearing my hydration.

Generally, you would try to get rid of a lot of the stuff you've been drinking the previous night and that morning, so you're well hydrated but haven't got a full bladder because a full bladder also makes you weak abdominally.

I've never been to the toilet in the car, although I know of other drivers who have.

Obviously you have a close relationship with Red Bull chief technical officer Adrian Newey. What is it that sets him apart from other teams designers? How does he design fantastic car after fantastic car?Lee smith, UK

His record speaks for itself. We know how many grands prix and world championships he's won with cars that have made F1 incredibly boring, through the Mansell era, and some of the Williams and McLarens.