Originally Posted by boston
It helps entry level in the US and exports. It needs the European market as well, which is where the smaller engines thrive. Tax laws there also encourage smaller engines. The 2.7 Ecoboost would circumvent most of the tax laws.
The dirty little secret is that the base V6 Mustang sold as well as the base Ecoboost Mustang. When the V6 was killed, Mustang sales dropped. People simply did not buy the Ecoboost.
The other dirty secret is that the V6 was as powerful, cost less, and got better real world MPG.
Ecoboost engines are just emissions engines and they are not more thrifty. That's the real irony.