Saw this debut at the Chicago show today.
Looks just like any other Cruze, except different wheels.
The current Cruze Eco is rated 42 highway, so this needs to get a much higher number than that.
That said, Cruzes are very under-rated.
I rented a Cruze last week while on vacation in Florida and I drove almost 200 miles in 75% city driving and averaged 37.4 MPG. And I am not easy on the go pedal.