Once considered to be Michael Schumacher's heir apparent, Mark Webber has done little so far to live up to those lofty expectations.

With only one top-three result to his name after five years in Formula One, Webber needs to pull out all the stops if he hopes to revive his flagging reputation.

Webber made his junior karting debut at national level when he was 15, and in 1992 became New South Wales state karting champion.

He then made his Formula Ford debut in 1994, and continued to make a name for himself with a series of impressive performances. In 1996 he won the Formula Ford Festival, and finished second in the British Formula Ford Championship while driving for Van Diemen.

His achievements led to him being voted Australian motorsport's 'Young Achiever' and 'International Achiever' of 1996.

Moving to F3 for the following year, Webber competed with Alan Docking Racing; taking five podiums and a win at Brands Hatch before becoming Mercedes' official works junior driver for the following year.

Webber took part in the 1999 Le Mans 24 Hour Race with Mercedes, but his season with AMG was cut short when the company cancelled its sportscar programme.

Webber and Peter Dumbreck both spectacularly somersaulted their cars at Le Mans, though neither thankfully was injured.

In 1999 he also made his Formula One test debut by participating in a two-day test with Arrows at Barcelona in December.

A busy 2000 saw Mark finish third in the F3000 Championship driving for Eurobet Arrows, as well as acting as the official tester for their F1 outfit (although contract problems meant that he failed to drive the A21).

He did complete a successful three-day evaluation test with Benetton however, and the team was quick to sign him up as their official 2001 tester.

During the same year, he battled it out with Justin Wilson in F3000 but had to make do with second place in the championship.

However, with a Flavio Briatore contract in his pocket, many Australians held their breath that at last they were going to have their first decent driver in F1 since Alan Jones.

When he signed for Minardi for 2002 they got their wish - and more.

A dream debut saw Rubens Barrichello and Ralf Schumacher take out a large proportion of the grid at the first corner in Melbourne and Webber scrapped with Mika Salo for a fifth-place finish.

That was as many points as Minardi scored all year, but a fifth place was more than Toyota could manage in 2002.

A switch to Jaguar duly followed and Webber proved quick to put new team-mate Antonio Pizzonia in the shade. Points were few and far between, and yet Webber finished the season with the reputation of a top-rate driver.

He remained at Jaguar for 2004, but by the halfway stage, with the team falling a long way short of the performance-related clause in his contract, it was an open secret that he would be leaving at the end of the season.

The only question was whether it would be to Renault or Williams.

Eventually, and in spite of a late big-money offer from Toyota, Webber plumped for Williams.

And after three years of impressing at the lower end of the grid, Webber was determined to make an immediate impact at the front with his new team.

Alas, the wins didn't follow in 2005, during which Webber's team were dealt one blow after another off the track with the news that sponsor HP, engine partner BMW and soon-to-return driver Jenson Button wouldn't be a part of squad in 2006.

On the track it wasn't much better either.

Webber failed to turn his good grid slots into strong race results, bagging just one podium finish the entire year. And although he was in the points more often than the less hyped-up Nick Heidfeld, Webber only edged ahead of his team-mate when an injury sidelined the German five races before the end of the season.

The Australian finished the year 10th with 36 points.

But while 2005 wasn't exactly what Williams and Webber had hoped for, the following season was even worse. In fact it was Williams' worst season in more than a decade.

The team struggled with pace, reliability and just about everything else, with Webber claiming a measly seven points on his way to 14th in the championship.

The poor results from both the driver and the team resulted in Webber and Williams ending their partnership after just two seasons and in 2007 he's off to Red Bull.

Armed with Renault power and an Adrian Newey-designed car, Webber may yet be able to resurrect his ailing career and reputation.