Car drivers are subsidized by the entirety of population. The roads they run on are built by public.
Your link seems to prove the opposite. It says that Colorado has the 24th largest share of roads paid for by gas tax, tolls and user fees with 49.9% paid for in that manner. That means that only 23 states have a majority of road spending paid for by gas tax, tolls and user fees, so most states (>50%) have less than half of road spending paid for by gas tax, tolls and user fees.