German GP, 30 July 1300 BST
Yamamoto tested for the Jordan team last season
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Super Aguri team boss Aguri Suzuki is hopeful his team's new car can make a big impact in its first race in Hockenheim next weekend.
"Next weekend is going to be like a new beginning for us," he said.
"It is possible that we are going to face a few teething problems, but I have every confidence in the capability of the car and the team."
Suzuki also confirmed that test driver Sakon Yamamoto will replace Franck Montagny in the race squad.
The new car replaces the four-year-old ex-Arrows chassis they used in the first 11 races of their difficult debut season which has seen them fail to score a championship point so far.
Yamamoto said: "I felt that the car was improving constantly throughout the day so I am really looking forward to going to Germany next week.
"I am very proud to be racing with the team and will try my best to improve, step by step, for everyone."