Custodian Auto does not appear to be directly linked to the provided URLs, which instead describe Custodian, a platform for car enthusiasts. Custodian simplifies car ownership by managing maintenance, digitizing history, and offering bespoke insurance for enthusiast and collectible vehicles[1][3]. Their target audience includes car collectors and enthusiasts. The unique selling proposition is comprehensive insurance solutions tailored to unique vehicle needs, along with digital management tools that reward well-documented car care with reduced premiums[1][3]. If Custodian Auto is distinct, specific details could not be found in the search results.