"Perhaps more concerning, a significant share of American consumers suggest that the auto industry should bear the entire cost for bringing these advanced technologies to market, saying they are unwilling to pay any more for these features — even those designed to improve safety," the report reads.
I didn't dig into the information much but here is the Bureau of Labor Statistics, Consumer Price Index for cars
It looks like cars are about 3% more expansive than they did in the good old days (or we are spending that much more, I don't have time to dig the numbers at the moment).
Not surprising that consumers are reluctant to push transportation costs even higher.