I think backlit E-ink screens would be great for cars. I too want something I can see well in the day.
E-ink is slow/inefficient to react, so probably not suitable for speedometer and tachometer type gauges. Apart from that, I agree.
my truck still has a physical dial for the speedo and tach.
(although i've never understood why it has a tach since its a manual anyway... but i guess i can close my eyes and imagine my V6 ranger is a corvette...)
Perhaps they can be fast enough and my assumption was wrong, but I was imagining an e-ink version of a mechanical gauge like that as being sort of blurry and perhaps more delayed than the real thing.
Never mind us older folks, who often have vision problems with up-close viewing, which is a solved problem when you can spin a shutter or aperture wheel by touch. But not when you need no-glasses to view the objective, but reading glasses to view the fine print on the screen.