It's a benefit to the business. There are way more variables of interest to consumers in a car than just UI; few if any will take a crappy touch UI as a dealbreaker (especially if everyone does crappy touch UIs). So it's a pure win for business - the downsides never reach them, they only materialize on the user end, large enough to frustrate people and maybe even cause accidents, but small enough to not cause a purchasing decision change the next time one is in a market for a car.

(I need a term for those cases. Psychological externality?)