I figure a great challenge is driving U.S. 50 across Nevada. It is dubbed "the loneliest highway in America" and very far off the Supercharger Network. In a long range, it's reasonable to do it with an overnight at an RV park/motel in Ely, NV. In a SR+ or Mid-range, it's more of a challenge. At one end there is the Reno or Tahoe supercharger but the gateway is the Chademo or Level 2 station in Fallon -- you're going to probably want the Chademo adapter and to use this. There are RV parks at Eureka and Austin you can stop for 1-2 hours of 14-50 plugin between Fallon and Ely. These are not shown on ABRP, so it makes doing this plan a bit harder to do. Likewise at the other end there is Chademo and Level 2 in Scipio and Fillmore, Utah, and you may need them to make it to or from the Superchargers in Richfield or Beaver. There are some other RV parks along that route which do show up in ABRP. Finally, you will have an easier time if you go westbound, because Fallon is 700 feet lower than Scipio, giving you just a little edge. This is probably one of the hardest trips in the USA to do in an Electric car. (There are plenty of harder ones in Canada though there is now Chademo/CCS along the Trans Canada Highway, though no superchargers yet. Musk has apologize for this since he's part Canadian. But even after that there will be tons of the area in many provinces you are not going to easily do in an EV.) So, anybody done this drive? I saw one video of an inexperienced guy doing it in a big Model X. He stayed 2 nights though -- it's easy to do it in 2 nights. This is a 6 hour drive, so even having to spend one night is a compromise, though if planned well, not a huge one, on a cross country trip. Did you pull it off in anything less than a Long Range? This is one of those trips you could regret not having a LR on to be sure -- though the cost may only be a couple of hours chilling in an RV park, reading or watching videos. With access to the full 32 amps your mobile connector can do, RV parks are your best bet anyway -- there are no J1772 chargers on the route, anyway.
Two days ago we wanted to drive the Highway 1 "big sur" route which is very popular. ABRP refused to route it. When we got there, we found Tesla's internal router also would. Both of them seem convinced that the section of highway wiped out in a landslide 2 years ago, and re-opened many months ago were still closed. Obviously you should fix the closure, but since you can't always fix all closures, it would be nice if there were a way to show closures on the map, and let me click on one and mark it as a waypoint, effectively saying, "I want to route through this closure." In addition, I have found that ABRP's predictions for energy use for the Model 3 mid range are way too optimistic. Driving a route where ABRP predicted I would finish with 23% found me under 10% -- and that was with me increasing the wh/mile above your norm. Another bug - I connected ABRP to my Tesla using credentials. It started importing the current state of charge into the starting charge level, and then nothing I could do could let me put in another number. Even when I typed in the charge I would have in the morning, and it displayed what I typed in, every time I said "plan route" it would insert the current SoC and do a completely different route to try to supercharge. This is just a bug of course, but one feature idea would be to notice from your query of the car that it is charging, and presume the person does not want to use the current SoC in planning, but rather a future SoC from when the charging is done.