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Creating 2 domains with same CMS content, different navbars

We are looking into have 2 domains, for example: www.mycars.com and www.mybigcars.com, but the content would be the same, other than the navbar, footer, contact pages. Everything else would be the same.

Obviously right now I could simply clone the existing website, but then that becomes an entirely separate entity which forks and I’d have 2 maintain each site individually. For example, I’d log into www.mycars.com editor, add a few CMS items, publish… but then those changes wouldn’t be present on www.mybigcars.com.

Is there a way to do this through webflow solely? Or would I need to get an outside CMS collection, then point it to different domains inside of webflow.