I've had my new 2021 Nissan Kicks SR for less than two weeks, but it already has rust forming on its brake discs. It mostly goes away after I drive it a bit, but it seems an issue that should be years away, doesn't it? Of course, I live in a rainy climate. But still, no one wants to see rust on their brand new car. Are any of you having this happen? And if you're in the know, should it be of concern?