A clean windshield improves evening using by way of decreasing halos and glare from oncoming headlights and streetlights.
https://mill-wiki.win/index.php/What_Happens_During_a_Windshield_Calibration_After_Replacement%3F_85971
A recent windshield improves nighttime using via slicing halos and glare from oncoming headlights and streetlights.