Im not sure when it happened, the most influential one i can think of was the zztop eliminator. My uncle was a custom painter in socal, and my dad knew some shady guys that had hot rods, so it was always around, but the eliminator stands out the most. plus i loved 57 chevies as a kid, my neighbor had a red one sitting out back for years, i always wanted it, but i had no money or knowledge of how to fix it.