A controversial bill that would require all new cars to be fitted with AM radios looks set to become a law in the near future. Yesterday, Senator Edward Markey (D-Mass) revealed that the "AM Radio for Every Vehicle Act" now has the support of 60 US Senators, as well as 246 co-sponsors in the House of Representatives, making its passage an almost sure thing. Should that happen, the National Highway Traffic Safety Administration would be required to ensure that all new cars sold in the US had AM radios at no extra cost.
I know that back in the early 00s I was traveling cross country and was surprised when I reached the prairies and realized there were way more AM than FM stations, but it's because AM travels much farther even though the fidelity is lower.