[nradov]

DLP projectors have been around for decades and have proven reliable.

[cjsuk]

Yes but do you stick them to the front of your car?

[floatingatoll]

I would do this in a heartbeat if it weren’t so expensive, just for the magical day when I can print “YOUR LEFT BRAKE LIGHT IS BROKEN” on someone’s rear view window (and then get pulled over while the cops try to find a law against it).