Given that the built in charger is lethargic (only 3.3kW, not even 6.6kW) and CHAdeMO L3 has not materialized in the USA, would it be possible to make a mid-range external charger that plugs into the L3/DC port?
For instance, it could have a 50AMP NEMA14-50 to plug in at campgrounds and supply 10kW+ charging through the DC port?
Perhaps also a J1772 adapter as there are public Tesla HPCs being converted to J1772 around, and they can offer, 32A, 40A, and higher. The included portable EVSE (even with the 240V mod) can only draw a tiny fraction of that.
If someone built a box with NEMA14-50 and J1772 and could output 10kW+ to the L3 I would certainly buy one.