I’m amazed you can get 110 miles of range with that trailer in those conditions at that speed. What is your Wh/mi average under those conditions?
I tow at 55 and on a flat road with no wind I use 500 to 550Wh/mi. My trailer is 96” at roof peak and 86” wide (2,300 lbs loaded but weight has little effect on energy usage on a level road). Your trailer clearly has a much larger frontal area than mine.
I had a good amount of towing this weekend, here's some data points.
Vehicle:
Model X 75D, 237 rated range - 4% degradation w/
22" OEM wheels and Pirelli's
Trailer: 6.5'w x 10'l x 8'h, V-Nose Cargo Trailer, Single Axle, Empty Weight: 1200lbs
Leg 1: Normal settings and driving, 66 miles, 60 mph average, 653 wh/mi, Air Temp: 82F, Peak Climb 566ft, Highway speeds of 70-80mph
Starting Range & Elevation: 90% @ 110ft
Remaining Range & Elevation: 22% @ 930ft
Leg 2: Range mode and normal driving, 40 miles, 58mph average, 638 wh/mi, Air Temp: 90F, Peak Climb 350ft, Highway speeds of 70-85mph
Starting Range & Elevation: 70% @ 930ft
Remaining Range & Elevation: 41% @ 1060ft
Leg 3: Range mode off, Chill Mode Enabled, 117 miles, 52mph average, 509 wh/mi, trailer loaded - ~2750lbs total, Air Temp: 74F, Peak Climb: 315ft, Highway speeds of 55-65mph
Starting Range & Elevation: 89% @ 865ft
Remaining Range & Elevation: 2% @ 865ft
Leg 4: Range mode off, Chill Mode Enabled, 98 miles, 54mph average, 585 wh/mi, trailer loaded - ~2750lbs total, Air Temp: 65F, Peak Climb: 610ft, Highway speeds of 60-70mph
Starting Range & Elevation: 85% @ 865ft
Remaining Range & Elevation: 12% @ 930ft
At that rate, your 100 kWh battery would only take your car about 350 feet from 100% SOC to 0%
Please do not make false claims. A non-performance Model X can easily pull a 5,000 pound trailer uphill at highway (passing) speeds. It's not a matter of performance or even gearing. The weight limit endorsed by Tesla is more for the frame rigidity and for stability control reasons.
My data fully supports this. Elevation mattered and I saw peaks of ~1200wh/mi; but over distance this averaged out. I was towing with a slightly less powerful MX75D; and with chill mode enabled I was limiting myself to even less power. The MX gets plenty of torque for getting going as well as passing. In Leg 1 & 2, I saw peak speeds of ~85mph, Leg 3 and 4 saw peak speeds of ~75mph.
With a proper extension cord (or say a
hypothetical network of high speed chargers) I don't see any real limitation of any Model X being able to handle the majority of people's towing needs.