After progressing to the position of technical director in charge of engines, he left Toyota on 19 January 2009, only to return to Ferrari on 6 October that year, replacing Frenchman Gilles Simon as head of the engine and electronics department.
Following his appointment as technical director in charge of engines at Toyota, he departed on January 19, 2009, before returning to Ferrari on October 6th of that same year, taking over from French engineer Gilles Simon as head of the engine and electronics division.