How/Where to Make a Suggestion for a New Feature in Apple Maps for CarPlay?

I use Apple Maps exclusively in CarPlay and find it to be an excellent resource in my area. I would like to make a suggestion for a new feature, but have no idea if I can do this, if so where and how do I make a suggestion?

There is an icon in Maps showing the current posted speed limit, based on your current location. I would like to suggest and icon showing your current speed. I believe Waze has such an indicator. (However, I have not found Waze to be nearly as useful as Apple Maps.)

Any idea where I can submit my request?