My lights have never gotten shattered or anything like that but they get pitted and the corner lights have little cracks. Quite possible the vinyl would stop that from happening.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15