Hi, everyone,
I really appreciate this extraordinarily detailed (!) thread, but noticed the lack of data about real-world experiences trailering with the Model X. I thought I would include some data from a recent trip as well as some observations, in case it's helpful to someone down the road.
TL; DR: I get about half the car's rated range.
The car:
2018 Model X 100D with 21-inch wheels. The rated range is around 270 miles. I've been a Tesla owner for a decade, own 3, and wouldn't drive an ICE (non-EV) car.
The boat:
2012 AR190 with stock trailer. The boat has two batteries, two amps, and a sub, but no other significant aftermarket weight. For this drive, the tank was about half full.
The trip:
Approximately 150-mile run from the Research Triangle area to Emerald Isle, North Carolina. This is an undulating run, ranging from about 315ft to 9ft above sea level. The trip includes time spent on major interstates, state, and backroads with speed limits ranging 35–70 mph.
The burn:
Average of 634 Wh/mi with a range of 540-760.
The takeaways:
- I preemptively supercharge because as much as I love the Tesla, it doesn't do a great job estimating range based on weight.
- I generally drive with chill mode enabled. This is a hedge on me pulling away from the line at a fast clip, as one usually does when not trailering.
- HVAC is a considerable range killer. This is well known, but the effects when trailering are significant. I estimate the increase at about 50-75 Wh/mi.
- I fuel up at the destination to keep weight lower for most of the ride.
- Some have asked about the hitch. Best I can tell, it's welded to the frame. I had some concerns re tongue weight, but the total weight is under the max for this Model X. The X's towing capacity did have some impact on my selection of the 190 over the 210.
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