The EU map is much more useful because is takes into account actual roads, which are absent from the Tesla map. However, the EU map seems incomplete because it doesn't include secondary roads - understating the real range of the Model S. What I'd like to see is a map that with all roads highlighted that are within about a 90 mile driving distance of a SC. I tried to draw one myself, but it got messy and I gave up. When you use this approach, it reveals some gaps in coverage that will need to be filled. (e.g., The top national park, Yosemite, which is well outside the round-trip range of a Tesla Model S)