Duragz

We have speed as a progress bar which for me is pretty useless now i fly on feeling at this point, what i am looking to get is to add somewhere on the UI the current speed in plain text as in M/s and calculated with the current breaking power how many meters will it take to a full stop. I have not looked into modding yet so i post this a question/idea if anyone know where to start or if someone just like the idea and make it.