The Mazda B-Series is a pickup truck that was first manufactured in 1961 by Mazda. Since the launch of the B-Series, Mazda has used the engine displacement to determine each model's name; the B1500 had a 1.5 L engine and the B2600 had a 2.6 L engine. In Japan, Mazda used the name "Proceed" for its compact pickup trucks, and "Mazda Titan" for another line of larger trucks.