Why do you think it is that the ambient temperature indication is not an available option for drivers of automatic cars.? Many of these are only available from stock and now I have an unhappy wife with a new MkV S automatic

Ambient temperature indicator? What does she want one for? I dont see the point in them. They're not black-ice indicators - if it feels cold enough,one just drives carefully. You can get a sticker that fixes to the door mirror glass. Its a thermometer and tells you the temp. Cost a couple of quid.