I live in Reno, just picked up my MS at the factory this past Wednesday. I thought I would share the "driving data" with the community FWIW.
I stared by fully charging at the Folsom Supercharger. By the way, the Supercharger is exactly where the "dot" and label says it is in maps.google.com. Google Earth has it mis-located by about a hundred feet, either way, very easy to spot (you won't have to drive around in circles to find it ... :)) A one-minute walk to McDonalds, or, the other direction, one-minute walk to a nice Mexican restaurant. Lots of ways to spend your hour in the Folsom Premium Outlets.
When I pulled away from the Supercharger, there were 266 miles of rated range.
When I pulled into my driveway, in Reno, there were 88 miles of rated range.
I drove 125 actual miles, using 178 miles of rated range. The net gain in elevation is 4600 feet (rounded to the nearest hundred feet).
I tried to keep my speed right at 67 mph, a bit conservative, but not all that much.
So the "penalty" for speed and elevation is 53 rated range miles, or an average of 0.42 miles per mile, or 42%. Another way of looking at it is 12.6 miles per thousand feet.
I used 50 kWh, and averaged 401 wh/mi.
Bumper sticker message: make sure you have 200 (or more) miles of rated range when you leave Sacramento, headed for Reno, even though the actual distance is about 120 miles (depending, of course, on where you start in Sacramento).
Next week, I will do the trip in reverse, and see how much I gain going downhill.
The trip was great fun; the MS takes the I-80 curves and hills effortlessly!