Upgrading to 16" or 17" rims

Hi PC,

Fairly new owner and the forum has already been such a great help. From cancellation of my pre-paid maintenance to researching rattles and vibrations you guys are the place to come to!

Surprisingly my wife is the one interested is possibly getting new rims for our 2013 next year but the loss of MPG is an issue. I've read the other threads about the 17" ride and compromises but what about 16's? Is the MPG loss evident?

We live in the Bay Area and Grey Prius' are everywhere and we want to stand out just a bit Thanks!