 Starting with the USB port does not charge Iphones. In less then 3000 miles had to replace 2 front tires in my Elantra GT due too the tires being so low and not able to handle medium size potholes. If you live in a state with no  pothole you will be fine but here in the Northeast after blowing the tire you will paranoid thinking if I am going to be left on the road again.The AM/FM reception is very poor. Gas mileage average at the moment is about 20 MPG.Also ask if you have a problem with the vehicle how long it will take to look at the vehicle( my dealer about 2 weeks ). 3d not available on the navigation system.