You can't tow a caravan or boat with an EV
The reality
Several EVs in Australia tow as much as 3,500 kg braked — the same as a Toyota LandCruiser, HiLux or Ford Ranger. The KGM Musso EV ute is rated to 3,500 kg; the Polestar 3, BMW iX3 xDrive50, Audi Q8 e-tron and Mercedes-Benz EQS SUV all tow 2,250–2,400 kg; and Tesla's Model X and Model Y are rated to 1,600 kg, which covers most camper trailers and small caravans.
The real-world catch is range: towing typically halves an EV's range due to aerodynamic drag and added mass. A Polestar 3 with a 25-foot caravan behind it will likely deliver 250–280 km between charges rather than its 560 km solo figure. That's manageable for most Australian caravan trips — Sydney to Byron Bay, Melbourne to the Great Ocean Road, Brisbane to Noosa — provided you plan stops at Tesla Superchargers, Chargefox or Evie sites with pull-through bays. NRMA and the Caravan Industry Association both publish EV-friendly caravan park lists.
The flip side: EVs are much better at towing low-speed than petrol or diesel utes. Maximum torque is available from 0 rpm, so launching a heavy boat from a wet ramp or pulling a stuck trailer out of mud is effortless. Tesla's Cybertruck demos pulling 4,000 kg up steep grades without sweating.