That's very true. To be fair, this is highly, highly experimental so first iteration will be the proverbial ducktape and cardboard solution. I think future ver

That's very true. To be fair, this is highly, highly experimental so first iteration will be the proverbial ducktape and cardboard solution. I think future versions will have the device embedded directly into the dash and fastened someway to prevent dislodging in a crash. There are polycarbonates that can take the place of glass to serve as both projection surface and combiner (though these might be pricey). Once attached using solvent, these are very sturdy. So sturdy, in fact, that they're used in high capacity fish tanks.