Complex sentence: He is the first Italian male to be excused compulsory military service on account of his promising career; and also raced Pre- 3000 Formula cars for a while until an accident limited his opportunities in this field.
Split into simpler sentences: He is the first Italian male to be excused compulsory military service on account of his promising career. He also raced Pre- 3000 Formula cars for a while until an accident limited his opportunities in this field.