I'm feeling the need to pop in here and clear up some misconceptions about EVs, specifically Tesla, on both sides of the aisle.
Babymog said something about not being within driving range of an outlet. That is extremely difficult to believe, since even a household 120v outlet can charge a Tesla. Not quickly, but possible. Most people install a 50A 240V outlet that will provide about 28 miles of range per hour of charge.
Something about needing drop-in batteries on a road trip. I took a 257 mile trip today with one stop at a Tesla supercharger. It gave me 125 miles of range in 28 minutes. At that point I only needed 80 to get home, but the car was ready before I finished eating. So no, battery swaps are not really necessary.
A Model X is suitable for towing an Airstream. Well, not really.
https://teslamotorsclub.com/tmc/threads/initial-trailer-pulling-report-90d-and-airstream-22ft-bambi-sport.74540/
tl;dr -- they get 100-150 miles on a charge. And superchargers are not exactly convenient when pulling a trailer. Don't do it unless you are really really dedicated.
Further, a Model X is rated for a maximum of 5000 lbs and an Airstream Classic 30 has a GVWR of 10,000.
I'm as much of an EV lover as anyone, having a Model S for 2.5 years and 59K miles. But the Diesels have their place. In the late 90s or early 2000s MB showed a prototype diesel-electric hybrid that I thought was absolutely perfect. Too bad it never made it to production.