If you are referring to the trailers in the us a 2 wheel trailer where only the front or rear wheels are on the ground in aust they are commonly called easy tow or dolly trailers I've used an easy tow for both commercial and private use anything from complete cars to rolling shell's drag cars to dirt circuit (speedway)cars their use has been grey area for unregistered or unregistrable cars I was told by highway patrol as long as the trailer rego plate and lights are at the rear of the vehicle being towed technically the car is covered by the trailer's rego
