@kaitlyn’s response is a good one. Tires should be the only post type. Brand, Season and Type should all be custom taxonomies associated with the tire post type. This will allow you to have pages associated with each of the taxonomies. For example, a list of all “Winter” tires, or a list of all “Good Year” tires or a list of all “Radial” tires, etc… Using custom taxonomies for these “attributes” you could even construct a custom search filter that could allow visitors to filter their selection by more than one of them, for example “Good Year Winter” Tires.
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