Looking for the best car dealership marketing agencies in the United States? Compare 12 automotive marketing providers specializing in dealership SEO, inventory advertising, website platforms, AI search optimization, paid media, and lead generation. This guide includes Ritner Digital and a direct client article from True Blue Autos documenting a 48.1% increase in Google Search clicks and 93.2% growth in search impressions between comparable reporting periods. Explore publicly available dealership audits, agency specialties, and practical questions to ask before hiring an automotive marketing partner.