Circuit: Jerez de la Frontera, Spain.4.423km
Objective: Preparation of the FW31 for the 2009 season: set-up optimisation work, tyre testing, reliability and systems checks.
Weather: Clear and dry.
Average ambient temperature: 15C
Sam Michael, Technical Director, Williams F1:
"Kazuki was testing for the team in Jerez today and covered over 550kms while undertaking mechanical set-up tests. He also completed a full race simulation without issue. We are looking forward to another productive day tomorrow when we will carry out more tuning work on the FW31 in preparation for the first Grand Prix."