On 10 July 2007 he was released from his Spyker contract, due to a lack of sponsorship money, which would have compromised the team's development programme. Team owner Michiel Mol described it as "one of the toughest decisions of my career". His replacement for the 2007 European Grand Prix was former Spyker test driver Markus Winkelhock. Sakon Yamamoto then raced for Spyker for the rest of the year.