Polycarbonate or not to polycarbonate . Are poly carbonate door windows road legal. I had some made with a square edge instead of the rounded ones normally found on the mx5's door to see what they would look like just not sure if they are road legal I know some have the slidy windows but if that's just glass it can be smashed in case of an emergency. You could probably drill through poly but hard to crack. Any ideas on legal for road use being one piece. Mine are ones that work with the winder or electric mechanism
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