I have a vacation home and due to antiquated electric service and distance from charging infrastructure, we need the range to be closer to the estimated numbers with this new Model 3 to make it viable.
On a different note: when do folks feel we may start getting to gasoline car ranges which are around 450-480 miles for my two current internal combustion cars?
If you want to see how a current EV would handle your trip plan it out on https://abetterrouteplanner.com
Even a standard 120v outlet will get you 40-50 miles added overnight.
Gas is 100x the energy density of batteries due to the physics. So it will be a while unless we want 8 ton vehicles on the road.
But on a road trip I am usually charging from 5-8% up to 50-60% and then moving on. This uses the fastest part of the battery charging curve, takes about 15 minutes, and gives enough charge for 2 hours of driving at interstate speeds before the next stop.
US ratings are likely to be around 360mi-375mi, vs the current 333mi.
Also those ratings are based around averages speeds well below interstate speed. You will probably get about 80% of that EPA range at 75-80mph on the highway.