 Went from a Genesis Coupe to the 2016 Sonata Hybrid SE.  The Sonata has a lot of nice features and it is very quiet, we call it the golf cart since in EV mode its really quiet.  Measuring gas mileage the old fashioned way; miles vs gallons pumped, my first tank gave me mixed driving 42.2 MPG. My mixed driving is back roads, towns and I-95 traffic moving at just under NASCAR speeds with AC all the way.  Daily drives using the computer, I have seen everything from 36 - 89 MPG at shut off.  The car shifts smooth and you may not know if you are on battery or gas unless you look at your gauges.  The car has three driving modes; eco, regular, sport and you can feel real differences in all of them.  On another note this car gets the same gas mileage as my motorcycle ....