The MPG displayed on the car might not reliable, especially at the beginning. What I've been tracking is to reset the trip meter everytime I top my gas tank, then at the next topping, just divide the trip mileage by the amount of gas I put in again.
Mine is a AWD so MPG should be lower than your FWD. I got the car at the beginning of October, it got 22-24 mpg during October and early November. Since then, it's been 19-21mpg, but perhaps mostly because I remote-started the car quite frequent, giving it some time to warm up especially parking outdoor in the subzero. The range currently shows 325 miles when I top the tank.
My driving consists of perhaps 50:50 city/highway in short distances (5-10 miles). I'm gentle on the pedal most of the time, but been experimenting with Sport mode and manual shifting, and sometimes push a little harder when I'm late for the bus.
I think mine is also a bit low on mpg, but I'm just keeping a close watch as it's still within the break-in period.