Running in an engine is one of those topics that always gets a good debate going. Personally I don't think there is a need to run in a new engine, in fact there is a school of thought that suggests running in is bad for an engine. Have a read of THIS and see what you think. I know the article relates to bikes, but the principle is the same.
Ultimately though it is up to each individual how they treat their car.
Ultimately though it is up to each individual how they treat their car.