Not sure if this has been mentioned anywhere else (I will post this in the v1.04 thread as well since that seems to cover these kind of points as well), but the M4 Coupe has KPH speedo when you have MPH selected.
This was like this ever since the interior was added as far as I can tell, and has not been fixed by v1.04 as far as i can see (have rewatched some replays from before and no apparent change to the interior display).
Thought it might be helpful to mention it here.
I know this is an issue with a few cars, but the M4 Coupe does not seem to be included in the lists on this thread or the v1.04 thread which is why I mentioned it.
Happy for someone to check and verify this of course, appreciate you can't just take my word for it lol.