I would have thought Ford to use that as an option to the Coyote. Just like Ford has options with the F-150, the EcoBoost has been a popular upgrade for many, it seems like it would have migrated over to the Mustang as well. When you hear that Ford will be turbocharging a Mustang, one would assume it would have just been the 3.5 EcoBoost motor. I can see the "Eco-conscious" manufactures choosing an inline 4 banger though, it does make the car way more marketable and more affordable world wide. Maybe with great sales, will come more options! Let's keep our fingers crossed!