Japan's Kazuki Nakajima said on Friday he has targeted a Formula One race seat in 2008 following his appointment as a test driver for Williams.
The 21-year-old son of former F1 driver Satoru Nakajima becomes the third Japanese driver in the glamour sport alongside Super Aguri's Takuma Sato and Sakon Yamamoto.
"My ultimate goal is to be an F1 race driver," Nakajima told reporters after signing his Williams contract. "I hope to achieve that in 2008."
Nakajima will work with the Williams team's other test driver, Indian Narain Karthikeyan. Williams expect Nakajima to start testing before the end of the year.
The Japanese will also compete in GP2, the Formula One feeder series, with the Le Mans-based DAMS team alongside Frenchman Nicolas Lapierre.
Nakajima competed in the Formula Three Euro Series this year and is a former Formula Toyota champion in Japan.
"His times are outstanding," Toyota motorsports division deputy general manager Hiromi Hayashi said. "He is very fast and has the physical strength to drive all day."
Once-mighty Williams have just completed their worst season in Formula One for 30 years, scoring only 11 points as they slumped to eighth of the 11 teams.