Try towing a van with an EV, page-130

towing a caravan will add around 10L/100km to your fuel consumption

say you do 500km a day.......that's about $100 on present fuel prices.....and then there's camp ground fees

a family traveling to a single site for a week it's still economical

grey nomads changing campsites regularly to stay in "free camps" (which have maximum stay limits)......and it gets pretty expensive

for a "grey nomad"......a motor home is more economical.....