@scaesare
remember the BMW i3 rex (Range EXtended) with a 1.3 gallon gas tank so the electric range was just an rch more than the fossil fuel range to meet some standards (calif if i recall, it's been years) and still was way under 200 miles with gas and electric.
there were folks in Calif EV clubs who built "fanny pack" battery trailers to tow for long trips, Louis Palmer of "Solar Taxi" (switzerland) towed a ~35ft PV array behind a tiny 2 seater EV on his 40,000km round the world trip