The Mazda B series is a series of pickup trucks that was manufactured by Mazda. Produced across five generations from 1961 to 2006, the model line began life primarily as a commercial vehicle. Through its production, Mazda used engine displacement to determine model designations; a B1500 was fitted with a 1.5 L engine and a B2600, a 2.6 L, etc. Notable variants include a version commonly known as the Rotary Pickup (a/k/a REPU), considered the only Wankel-engined pickup truck. It was sold from 1974 to 1977 in the US and Canada.