I didn’t watch it. I’ve seen a lot TFL videos. Tesla uses watt hours per mile. Ford had to be different, or was it Tesla. Yeah it was Tesla. 1.4 kWh per mile. Search TVL for Model X towing. They pulled a 5000# trailer. Can’t remember what they got. At the end of the day I really hope EVs encourage super light camping trailers. Aerodynamic too. Was it a toy hauler camper? That so American(Canadian too??). Let’s get a big trailer that can hold ALL our stuff to pull our big toys behind our big truck. If North America wasn’t so big I’d downsize my vacation plans and gear but I’m 2200 miles from the Grand Canyon and 2500 miles from Glacier NP. Both and my camping vacation list. Want to RV with an EV look up Alto trailers
Yeah it was a toyhauler, but empty of course. Yes they are common here too.
IME weight doesn't make as big of a difference as wind resistance, by my estimation the GCW of my unit is 8,000lbs heavier than the Sierra and trailer in the video, and I averaged 10.5mpg the last 2 weeks (granted with a more efficient diesel engine). I've looked a few times to try to make my trailer more aerodynamic, and it seems long trailers are more efficient, as are ones with a lower roofline. But a funny point I found was many suggested reversing the trailer body on the trailer frame, because most trailers have a more rounded nose with a flat rear end, where in reality a blunt nose with a rounded rear end would net better fuel mileage.
EV's would actually shine pulling heavier trailers (if the trucks could come with 300kwh batteries to get decent range), because in hilly terrain a traditional truck wastes kinetic energy as heat in the brakes or exhaust brake on a downhill grade, where the EV would recharge the batteries.
I have seen the Alto Trailers (and similar units) lots, a lot of them go by here in the spring with US plates headed to Alaska pulled by smaller vehicles, returning south in late summer. Just recently I was actually curious to know about fuel mileage as well, and was quite unimpressed with what I found. In particular I found a blog where a user was getting 25-28 mpg with a Subaru outback when empty, but pulling an Alto was down to 14-16mpg at 50-55mph, and 11-12mpg at 60-65mph. My big truck and large RV getting 10.5mpg is no impressive feat, but I feel less bad about it knowing downsizing to half-ton gas truck and small trailer wouldn't really net any fuel mileage gains.