Drivers of used cars whom automakers have a direct line to—whether by email or app—are often offered free trial periods aimed at hooking a consumer to the subscription model of car ownership. But many drivers of used cars aren’t so easily targeted, especially those who don’t buy their cars through automakers’ dealer-controlled networks. A 2021 survey of more than 2,000 US car owners led data and analytics company LexisNexis Risk Solutions to estimate that 83 percent of owners of used cars with built-in connectivity “remain untapped”—meaning automakers had left money on the table. Since 2021, LexisNexis has offered a service…