An Implicit metaphor has no specified tenor, although the automobile is present. M. H. Abrams gives the next for instance of the implicit metaphor: "That reed was much too frail to survive the storm of its sorrows". In his e-book In Other Footwear: New music, Metaphor, Empathy, Existence Kendall Walton https://metafora79112.blogdon.net/the-basic-principles-of-metafora-50655216