[freebeard]

Yeah, but is it made out of rocks?


http://basalt.guru/larte-design-use-basalt-fiber-in-tesla-model-s-front-bumper/

The Larte Design front bumper uses a choice of two methods of construction. As standard it comes in a plastic composite material which is strong and durable. For the ultimate in motorsport-inspired strength and light weight, the bumper can be made from Basalt Fibre which is new material to the automotive world and has very similar properties to Carbon Fibre, being extremely strong while impressively light weight.”