Yep, you read that correctly. We now live in a world where a 310 HP Mustang can do 31 MPG on the highway. That's a pretty good thing, even if that Ford gave it the wrong name.
Mustang6G.com got a hold of the window stickers for the EcoBoost, and V6 which list the EPA rated fuel economy. The EcoBoost is good for 22 MPG in the city and 31 on the highway, and the manual V6 gets 17 MPG city and 28 highway. Opting for the automatic in the V6 will get you an extra 2 mpg in the city.
As of right now, no data for the automatic EcoBoost or the V8 with either transmission has been released. My highly informed "I'm an auto-journalist" guess about the V8's fuel economy would be that it's probably worse than V6. You can thank me for all my hard work in the comments.
All in all, the EcoBoost especially with the performance pack is starting to sound like a pretty nice package. It's lighter and cheaper than the GT, and while it's down on horsepower it's not far behind with just 125 hp less than its big brother.
Obviously I won't make any conclusions about the not-SVO 'Stang until we know how it drives but on paper, it's quite appealing. Even though I'm not a traditionalist by any means, I don't know if I could live with Mustang that doesn't have a V8. It goes against everything I know.