You can tow it with a car
Not all Australian Touring Caravans weigh 8000lb, there are lightweight single axle models, like this 4,200lb , 22ft version that can be easily towed by a car.
Forum Discussion
When I was a kid in the 50s my uncle had a TT he pulled with a Cadillac convertble even in the Sierras and nobody thought it was unsafe. I don't know how heavy it was but I think it was about 20 feet long and would sleep 4 didn't look light. This was not unusual there were a lot on the roads. Also lived in Europe and saw smaller cars pulling resaonable sized TT. On the ranch I grew up on we put all the bales on a half ton pickup we could and today it would be considered way overloaded. Times have changed.