Team Sauber Petronas will launch their 2004 World championship challenger, the C23 today [Monday] in Austria.

The all-new C23, will be the first car designed by the Swiss team to benefit from their new state of the art, ?50 million full-scale wind tunnel, and although it won't influence this year's design to the same extent as next - having only just recently come online, it should help the team throughout 2004, as they continue to develop their new machine.

The launch will take place at Red Bull's Hangar-7 in Salzburg, Austria, and will be screened live on the internet, via three websites, namely www.redbull.com, www.sauber-petronas.com and www.hangar-7.com.

New drivers Giancarlo Fisichella and returnee Felipe Massa will pilot the C23 this year and the launch will be the first opportunity to see the new car in its 2004 livery.

British pop band, the Sugababes will also be in attendance, performing their new song, Hole in the Head.

The launch, which will take place at around 5.30pm [BST], marks the tenth anniversary of the partnership between Sauber and Red Bull - one of the longest standing in F1 history.

More to follow post-launch...