Your taillights are every bit as important as your headlights, so why are we only talking about refurbishing the lights up front? Taillights can get old and cloudy as well, but it doesn’t happen quite as soon or often as headlights. The reason headlights get so faded is because of road debris and bugs constantly hitting them, which doesn’t happen nearly as often on the rear end of your vehicle. If you’ve had your vehicle for years and years, then perhaps you should consider restoring the taillights as well, but generally, it’s not as necessary.