Check this article from Autosport:
IRL champ to get dream opportunity
Dixon has starred in the IRL with Ganassi Racing
Indy Racing League champion Scott Dixon will get his first run with the Williams Formula 1 team during a test in France next week as it looks ahead to its potential 2005 driver line-up.
The 23-year-old Kiwi will test for Frank Williams' team next week at Paul Ricard in France. A full-blown test will follow in April.
With Juan Pablo Montoya heading for McLaren in 2005 and team-mate Ralf Schumacher's contract talks having stalled, Williams is looking at the possibility of replacing both its drivers next year, and has previously looked to America to recruit the likes of Alex Zanardi and Juan Pablo Montoya. Dixon drives for Chip Ganassi Racing, for whom Zanardi and Montoya both won Champ Car titles.
Dixon, who became the youngest driver to ever win a CART race in 2001 at Nazareth, captured the IRL title last season in his first attempt at the all-oval series. The 23-year-old's longterm goal has always been F1, and he had been linked to Toyota, whose engines he has used since 2001.
Wath do you guys think about this?