Burbank to Harris Ranch is 188 miles...that's the distance t the Supercharger closest to where i live...I consider that my "easiest" trip. If you have an 85kWh pack you should easily make that, even in cold weather, at 60mph. Completely reasonable.
Wow... 60 mph... I would rather take my ICE. Driving long distances at 60mph on I-5 with dirt as scenery is torcher. Tesla should put disclaimers for supercharger to supercharger charging to drive slower than posted speed limits for little to no range anxiety if that's the case. I just drove from L.A. to San Jose. That cold 30 degree weather sucked the hell out of my battery... even driving between 65 - 70 mph with strong head winds to "safely" make it. I personally don't care to stay on the road longer than needed. Point A to B as quick as possible. I have other things to do.