Former champions Williams yesterday launched the car they hope will catapult the team back to the top of the Formula One motor racing grid.

New drivers Ralf Schumacher and Alex Zanardi helped unveil the 1999 challenger in Barcelona this morning. The team failed to win a race for the first time in 10 years last season as they also lost their constructors' title.

Williams will test for the next few days at the Circuit de Catalunya in preparation for the opening race in Melbourne on March 7th.