In New Zealand, GVM stands for "Gross Vehicle Mass." This metric is very important as it relates to the safety, transport capacity, and legal compliance of the vehicle. The Gross Vehicle Mass is defined as the maximum allowable weight of a vehicle when fully loaded, which includes the weight of the vehicle itself plus the total weight of passengers, cargo, fuel, and other items. Understanding and complying with regulations related to GVM can ensure safe driving, prevent traffic accidents caused by overloading, and is a necessary condition for adhering to New Zealand's road traffic regulations.