sentences:  The previous team boss of Midland, Colin Kolles, remained as team principal into 2007.Michiel Mol became the new Director of F1 racing and member of the Spyker board, and Mike Gascoyne became the Chief Technology Officer from the end of the 2006 season.The team used customer 2006-spec Ferrari engines in 2007, replacing the Toyota units, which went to the Williams team.