To stay competitive online, everybody needs some kind of supplemental content. Your business is no different.
The greater the value you add to the users of a search engine, the greater the organic search output of your website. Adding supplemental content is the perfect approach to accomplish this goal.
A blog containing articles (including SEO keywords for car dealerships) can help visitors understand you as an authority in your industry and build credibility and trust in your brand.
Brand credibility will always lead to more sales.