Complex sentence: He was later promoted to Technical Director of the Racing Department in 1970, Mauro Forghieri designed the Ferrari 312 series (consisting of the 312 and 312B formula one cars and 312P and 312PB sportscars).
Split into simpler sentences: He was later promoted to Technical Director of the Racing Department. In 1970, Mauro Forghieri designed the Ferrari 312 series (consisting of the 312 and 312B formula one cars and 312P and 312PB sportscars).