From the first B-Series pickup truck, Mazda has used the engine displacement to determine the name. Thus, the B1500 had a 1.5L engine, and the new B4000 has a 4.0L V6. In Japan, Mazda used the Proceed name on its compact pickup trucks, and another line of larger trucks is available called the Mazda Titan. Other names used for this line include Mazda Bravo (Australia), Mazda Bounty (New Zealand), Mazda Magnum / Thunder / Fighter (Thailand), and Mazda Drifter (South Africa).
Mazda's partnership with Ford has resulted in the sharing of this vehicle—the Mazda B-Series and Ford Ranger are essentially the same. In Australia and New Zealand, since the 1970s, the Ford Courier name is also used and the line continues today.
However, it should be borne in mind that the Mazda B-Series and Ford Ranger twins found inside North America are unrelated to the ones sold elsewhere. These are engineered by Mazda, whereas the North American models are developed by Ford. See Mazda B-Series for more information on the variations on the B-Series line.