In reply to Can a font make driving safer?:
The risk wouldn’t be avoided completely anyway, if not refraining from driving.
And be them heads-up displays or retinal implants, they will still use fonts.
By the way, Nick’s image is indeed a reminder that readable fonts are just one of the elements to take into account. That speedometer is a far superior design for judging speed at a glance (based on the angle of the red hand) than more recent ones which just show a changing number.