As a porter at a ford dealership, I got firsthand experience with all the ecoboost motors, almost all of which are 4 cylinders. They're pretty fun to drive, especially in cars like the focus ST or mustang (still prefer the 5.0). I know said cars are a lot lighter but the point is turbo lag seems like a thing of the past, and these engines make great power, torque, and gas mileage.
As far as those pictures go, that does look kinda rough. Hoping it's a prototype.