Vendors usually needn't worry about auto show-goers leaving the exhibition hall without a clutch of pamphlets under their arm. But with dozens of cars from several competitors, who says the automobile literature will actually be read and the trimline kept in mind? Mazda Motors Corporation intended their house footprint-sized book for the company's photo gallery in Tokyo. But with a colossus like that sitting next to the year's concept car, who's going to forget? That is, until every carmaker follows suit, at which point vendors can be certain that no one will be going home with the books under an arm. Bears, sumo and Japanese women filling two-piece bathing suits just as well as a Yankee girl could in this week's round trip to the place where dreams, strange dreams, are made reality.