It's honestly one of my biggest gripes when off roading'/overlanding. As soon as you're away from reception *boop* there goes your range estimate. Baffles me the truck cannot dynamically switch to an internal model at the least based on speed, terrain, temp, etc. That would at least get us close...
Super interested in one of these. I even emailed Tune to see when they plan to have the changes/modifications done for the Rivian and how long a new order might take. I think a roof rack w/ wind deflector is a must for aero and also visual aesthetics.
Wonder how OP's highway efficiency would...