I'm assuming that the 1.0 litre ecoboost has an intercooler front mounted like the 2.0 liter version. If so, it looks like the Focus with the 1.0L engine has open mesh grills. This car looks absolutely fantastic:
It looks like this mesh design would do a good job with air flow/cooling, although I'm sure the ST's intercooler will be doing a lot more work.
Edit - oops, never mind. The side grills are closed, too.