Williams have confirmed that Kazuki Nakajima will race for them in the final Grand Prix of the season, as autosport.com predicted earlier today.
Having covered more than 7000 kilometres of testing for the team this year, as well as taking part in five Friday practice sessions, Williams felt he was the obvious choice to replace the retiring Alexander Wurz.
Speaking about his opportunity, Nakajima said, "I am very grateful to the team who have given me this opportunity.
"I hope I now know the car very well and thankfully have done some Friday driving as recently as Shanghai.
"This is a chance I intend to grab with both hands and repay the faith the team are showing in me with a strong performance."
Team boss Frank Williams has made it clear, however, that the Brazil outing is not an evaluation for a 2008 race seat.
"You cannot assess a driver's capability on the basis of one race but this is an ideal opportunity to develop Kazuki's experience," explained Williams.
"I am confident he will approach the race in a very workmanlike and focused way."