i need to know if the bumpers (front and rear) and the factory spoiler for a turbo model are plastic or fiberglass.
also if you have any recommendations for a product to use to fill in small nics here and there on the front bumper from miscellaneous things like gravel etc.
i did buy this one product claiming to be a "fiberglass resin jelly" that says it can be used on: metal, wood, plastic, and fiberglass. i believe it's made by a company similar to bond-o or it is bond-o. let me know if you think that will work.
thanks in advance.

Often times, body panels are FRP, or Fiberglass reinforced plastic. This really doesn't make a difference as to if they can be fixed or not. I recommend properly mixed Bondo, it's a staple of bodyshops around the world. True Bondo is a polyester resin cured with dibenzoyl peroxide paste