Why the fuck do cars still have analog speedometers? Surely digital ones would be more accurate and much easier to read without looking away from the road for too long.
You can design a digital readout to intuitively provide the same.
And I think you're overstating the importance of rate of change in analog guages that you find in commuter cars.
Some sort of scale on the side/bottom of the screen would solve that easy enough. It's only really useful when accelerating into the highway or from a red light, not terribly important.
Not really, you never really check how fast the needle moves it's a side effect of checking your speed. A scale by the numbers, or as a circle around the numbers, would have the same affect. You just noticed how fast it's moving in your periphery as you check your speed.