Is anyone aware of any aftermarket firms who will add more batteries to the car? I have been following Can-Am RV's thread/video of installing a hitch to pull their Airstream trailer (6,000 lbs!) and while the car is perfectly capable, the issue becomes range. I am looking for a firm who has the expertise to wire in additional Tesla batteries which could be plugged in just to deal with these very long trips.
Tesla Model 3 Towing Airstream - Blog