Despite the caravan industry’s best efforts to minimize and deny liability as evidenced by the numerous caravan issues raised already in the forum, caravans are covered according to ACCC Consumer Rights Guarantees
"What products and services are guaranteed?
Businesses must guarantee products and services they sell, hire or lease for:
** under $40,000*
** over $40,000 that are normally bought for personal or household use.*
For goods or services supplied from 1 July 2021, the threshold amount will increase to $100,000.
Business vehicles and trailers are also covered, irrespective of cost, provided they are used mainly to transport goods.
Businesses must provide these automatic guarantees regardless of any other warranties they give to you or sell you."
Almost all caravans are bought for personal use, so therefore are covered.