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Per the article.

His major ventures today provide consumers with driving records, criminal records, and vehicle-history reports (just as Carfax does) across dozens of different pages, notably carhistory.us.org, dmv.us.org, vehiclehistory.com, and vehiclehistoryrecord.com. In fact, anyone looking for these services would have a hard time avoiding him: as of November, if you searched vehicle history on Google, Yahoo, or Bing, ads for Willms’s sites were among the first things you would see. By the looks of it, Willms offers a terrific deal—just $1 for a vehicle-history report, compared with $39.99 for one from Carfax. Because of this, Willms’s lawyer claims that the sites have received “several hundred thousand positive comments related to the product.”

So more of the same scams.

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He almost definitely partly chose this niche so that he could respond to craigslist/classified ads of people selling their cars and say "I'm ready to pay [huge amount] in cash today but I need to see a vehicle history report from XYZ first."

For like a decade now, people have been posting fake job ads and then telling applicants to pay for their own "background check" in an identical scam.