The GS 450H has a "crusing range" miles indicator on the energy screen. I must say the GS version of this screen is much better than the RX version. Why they are differen't I don't know, but on my GS it will keep fuel economy for the last trip vs resetting completely. Additionally there are more bars, and I get a "tank MPG" reading on the guage display which is calculated differently than the nav display.