It is primarily a gasoline- powered car that uses an electric motor for extra power when needed.
(It; is primarily; a gasoline- powered car that uses an electric motor for extra power) (a gasoline- powered car; uses; an electric motor; for extra power; T:when needed)
It a gasoline- powered car
is primarily uses
a gasoline- powered car that uses an electric motor for extra power
an electric motor for extra power T:when needed