> Maybe it is just my Gen X experience of learning to drive on a stick and paying attention to tachometer and coolant temp.

You and your fancy cars... my 1981 Vanagon doesn't have fancy stuff like a tach or a trip meter or a temperature gauge. Who needs a tach when you have ears, and anyway there's a colored dot on the speedometer at the top end of first, two dots at the top end of 2nd and three dots at the top end of 3rd. If you go over, the rev limiter will let you know.

I bet you had a separate indicator for left turn signal and right turn signal, but do you really need that? --- a single indicator if any turn signal is active is plenty.