Google announced on Google+ that they have expanded the knowledge graph to include automobile/car information. So if you search for [2014 Honda Accord] or [2014 Mazda3] or other car make and models, you will see information about that car on the right hand side panel’s knowledge graph box….
Please visit Search Engine Land for the full article.
Search Engine Land: News & Info About SEO, PPC, SEM, Search Engines & Search Marketing