Complex sentence: He was in charge of mechanical engineering for all of the Alfa Romeos, taking part in creation of the Alfa Romeo 1900, Giulietta, Giulia, 1750,2000 and Alfetta.
Split into simpler sentences: He was in charge of mechanical engineering for all of the Alfa Romeos. He took part in creation of the Alfa Romeo 1900, Giulietta, Giulia, 1750,2000 and Alfetta.