That's not the case with the 1994 Mazda B4000 4x4 LE Cab Plus. We think we've uncovered the reason: Mazda's long-standing partnership with Ford and the by-no-means coincidental similarities between a good deal of this new Mazda's sheet metal, dimensions and underpinnings and those of the Ford Ranger. It's not necessarily a bad combination, because its size, roominess and responsiveness put it squarely in the mid-size pickup category along with Dodge's Dakota, Chevy's new S-Series and Ford's Ranger.