Google has added a note to the product structured data help documentation to say how to specify car markup and still have Product review snippet feature eligibility.
What is new. The note says “currently Car is not supported automatically as a subtype of Product.” Google said that you “will need to include both Car and Product types if you would like to attach ratings to it and be eligible for the Search feature.”
Code example. Google then provided this example in JSON-LD:
Why we care. If you are just using car schema or just using product schema on you car and automobile landing pages, you will want to make sure to use both. If you do not, any review snippets may not show up in the Google search results for your site and web pages.
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Barry Schwartz a Contributing Editor to Search Engine Land and a member of the programming team for SMX events. He owns RustyBrick, a NY based web consulting firm. He also runs Search Engine Roundtable, a popular search blog on very advanced SEM topics. Barry’s personal blog is named Cartoon Barry and he can be followed on Twitter here.
