What is the term for attaching a tow bar and allowing the vehicle to roll on four tires?

The term for attaching a tow bar and allowing the vehicle to roll on all four tires is flat towing. This method enables the towed vehicle to maintain all four wheels on the ground while being towed by another vehicle. It is commonly used for recreational vehicles and light-duty vehicles, allowing them to be easily transported without the need for a trailer.

Flat towing is advantageous because it simplifies the towing process, making it easier for owners of camping vehicles or off-road enthusiasts to bring their vehicles along without the bulk and inconvenience of a trailer. It is essential for the towed vehicle to be compatible with flat towing to avoid damage to its drivetrain or other components. This method is distinct from the other terms provided, which typically involve using trailers or isolating the vehicle's wheels from the ground.