Yes, it will be interesting to see what the actual battery capacity and towing range will be in the Cybertruck. I'm not even going to try to rework his math. (Though even Steve's trailer doesn't weigh half of his example trailer, and mine is less than a third of the example weight. And, I can't honestly remember the last time we gained a net 5000 feet elevation in one hundred miles of driving, at an average of 75 mph , even with the Ram's hemi.)
It would be quite nice if Tesla did some real world testing while towing with the Cybertruck, as they have done with the yet to be released Tesla semi, but the necessity isn't the same, when many pickups never or rarely tow a trailer, at all, or, just tow a utility trailer short distances for work. Semi purchasers will insist on meeting full load towing projections. Their livelihoods depend on it.
Some recent efficiency changes in Tesla motors have upped the range of the newer s and x by a small per centage, with the same battery . I've heard some battery improvements are upcoming, as well. We'll see what we get in a couple years, when the pickup actually hits the road.
Overland, I, too, am hoping for a 300 to 350 mile range, with my little Ollie in tow, though I'm not holding my breath.
Even a 300 mile range towing would slow us down, when we're trying to put miles behind us. With the ram's big gas tank, even towing, we can travel at least 300 miles or so, or 4 to 4.5 hours on the interstate. If our coffee intake doesn't make us stop earlier. 😏
As far as towing with a Tesla x, I was reminded of a video I saw of test drives in Australia, from Penrith, (elevation 80 ft or so) outside Sydney, to Bathurst, via the great western highway, and back, via Bell's Line of road. Both beautiful roads, in the Blue Mountains. Nothing approaching mile high, but plenty of mountain driving, with high points of maybe 3000 ft. Or so. More real world. And, a bit over 100 miles. With a roughly 4000 lb trailer behind the Tesla x, it used about twice as much battety power than when driving without the trailer. Same as we've heard from most reports with the x.
Probably important to note a couple of other things. The test drivers reported great towing stability, and acceleration with the x. And, Australian speed limits wouldn't allow towing at 75 mph. 😏 The x arrived at bathurst with 12 per cent capacity left. A bit better on the return on the more windy and slower Bell's Line of Road. (Which is a beautiful road, by the way. We drove it in 2015, in a campervan.)
Full report https://www.carsguide.com.au/adventure/tesla-model-x-74243
Video