Recently purchased a 1974 El Camino to use for parts in another that is being restored. It's in pretty bad shape but seemed to have a rusted police type of badge and spotlight installed on it. I was wondering if anyone knew about El Camino's being used as police cars? I've searched online but found nothing. Wondering if someone simply installed these things for use as a security car or as a gimmick. Does anyone know anything about this?