Complex sentence: The aluminum 90 degree SOHC V6 engine was roughly based on the 2.0 L Merak engine, itself based on earlier V8 Formula One Maserati engines, designed by Giulio Alfieri (1924--2002).
Split into simpler sentences: The aluminum 90 degree SOHC V6 engine was roughly based on the 2.0L Merak engine. Itself based on earlier V8 Formula One Maserati engines, designed by Giulio Alfieri (1924--2002).