I bought my 2011 Sonata Hybird in May of 2011. The MPG was rated for 35-40 miles per gallon. I am only averaging 35. I joined a blog on this subject - and a couple of responders told me it was because it was winter (in this, the warmest winter on record) or because I simply could not drive economically. I feel strongly that these responders are Hyundai employees.
I have also had problems with my bluetooth for severals months now. My phone worked fine with the Bluetooth for a a couple months - then stopped working all of a sudden. The dealership told me it was my phone - so I got a replacement of the same model. But that did not work either. I tried to get the dealership to deal with it - and they are willing - but I will need to spend more time than I have to bring my phone over there and have them try to get it working.
I love the way this car looks, and it's a very comfortable car to ride in. I bought this car for two reasons - the fact that it has a panoramic sunroof and it's a hybrid. The 2011 hybrid model was the only way to get the sunroof. I was trading in a convertible - so the large sunroof was important. And the fact that it was a hybrid was appealing. But I'm dissappointed in the gas mileage and the bluetooth.