Hi, I completed my Model X reservation on 8/14/13, Reservation Sequence Number 5,002. I am hoping that the Model X will meet my need for greater electric range. I sat in a Model S in the Tesla Miami Beach store and found the headroom inadequate. I am optimistic that the X’s headroom will be better. Purchase of a Tesla will allow me to continue to implement my plans to drive as electrified as the marketplace allows. I currently drive a 2010 Lexus 450h (hybrid) and a 2013 Ford C-Max Energi (PHEV), both of which are more than adequate. The Energi was getting stellar mileage while I lived in Miami: about 250 mpg and 96 mpge. See 258 MPG, 96 MPGe â€” First 3 months, 1242 miles - Fuel Mileage - Ford C-Max Energi Forum During my first few months living in Gainesville, Florida, I have been driving considerably longer distances at much higher speeds, far exceeding the capacity of the battery and available regen. Relying much more on the ICE, my average has been steadily decreasing. I am currently at only about 90 mpg lifetime (with about 3,000 miles on the odometer). Within the next year, I plan to install solar electric panels on my house. I look forward to learning a lot from the participants on this forum.