This is not a standard feature of new cars, but it's pretty affordable addition for middle segment cars (In my MPV it was an extra 700$). Premium cars getting this more and more frequently, not LED, but lasers in case of Audi (and VAG).

It's certainly not a standard feature, at least for normal cars. They're available as an option or as an aftermarket upgrade.

It's an option in pretty much all middle-class cars (e.g. Golf).