How does the EcoBoost engine in the Ford Puma improve fuel efficiency?

I've been hearing a lot about the EcoBoost engine in the Ford Puma and how it's supposed to improve fuel efficiency. Can anyone explain how exactly this works and if it's worth the extra cost?

The EcoBoost engine uses direct injection and turbocharging technology to increase fuel economy without sacrificing power. It's definitely worth the extra cost for the improved performance and efficiency.

I've been driving the Ford Puma with the EcoBoost engine for a few months now and have noticed a significant decrease in my fuel expenses. Plus, the added power is a nice bonus.