Waaay too small fonts. In a bumpy car (or aircraft), they're hard to read and not everybody has eagle eyes.
Same for the buttons. I have my experiences with touchscreens in bumpy conditions. This one looks good, but in flight it's simply terrible as you will often hit the wrong "button", in particular in turbulences - but not only.
(and in flight this can cause real issues as you often don't simply know which button you accidentally pressed ...)
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If you increase your fonts and buttons to a reasonable size, even for people with 70 year old eyes, your design will break.