by Hib Halverson, V-Series Cadillacs have had polycarbonate headlights since the Cadillac introduced the first model, the CTS-V in 2004. A problem with plastic headlights can be that, over time, they turn an yellowish-brown and may develop a rough or crusty surface. Not only is that ugly, but it also reduces the brightness of the headlights. Ultraviolet (“UV”) rays in ...

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