Such things are exist on some high-end European and Japanese cars. I don't know why, but most advanced things which you can find in Europe is not available here. For example, those rain sensors were introduced in Europe more then 10yr ago in luxury vehicles. Right now you can find small budget cars with them. In North America not even Lexus has it. In correlation to Europe, Ford Focus or Toyota Corolla should have them a long time ago. I talked to some major car manufactures and was told that Americans are too conservatives to such things, they like simplicity and most moms wouldn't need it, ...bla-bla-bla.