Just saw the EPA has official numbers for 2017 A4 now...

http://www.fueleconomy.gov/feg/Find....36394&id=36398

2017 Audi A4 Quattro
Combined - 27
City - 24
Highway - 31

2017 Audi A4
Combined - 28
City - 25
Highway - 33

That's a 2 MPG jump for the quattro and a 1 MPG jump for the FWD over the 2016 looking at the combined value.