Mark Webber today re-signed with Jaguar until the end of the 2005 season after agreeing a two-year extension to his contract.
The 26-year-old Australian has been rewarded for his outstanding performances so far this season in what is only his second year in Formula One.
Webber, who joined Jaguar from Minardi at the end of last season, had been linked with a move next year to Renault, the team for whom he tested before being handed his grand prix chance.
"I hope that, by making this announcement so early in the season, people will realise just how serious both our intentions are to firmly establish Jaguar's place in Formula One," said Webber.
"We know it's not going to happen overnight, so I'm very happy that we've made this commitment now and can continue the hard work we've already started this year.
"For me personally and as a driver, I'm very excited by the prospect of being involved in what is a long-term objective, and to see our goals being realised as we make further progress over the next two years."
Jaguar managing director David Pitchforth said: "Mark is an outstanding talent and everyone at Jaguar Racing is naturally delighted that the partnership will extend to the end of the 2005 season.
"Mark's start to the season has been very impressive and his approach to racing is very professional both inside and outside the cockpit - and we see Mark as an integral part of our long-term development.
"His natural abundance of skill and commitment provide a considerable impetus for the team to continue strengthening at all levels of the business and in the process, take our challenge to teams further up the grid."
Webber scored Jaguar's best-ever qualifying position of third in Brazil earlier this season - he was also fifth on the grid in San Marino - and claimed the Milton Keynes-based outfit's first points of the campaign with seventh in Spain last weekend.
The Buckinghamshire-based driver's displays have put the spotlight on rookie Brazilian team-mate Antonio Pizzonia who could have been replaced after Spain had talks not broken down with McLaren over their reserve driver Alexander Wurz.