Welcome to the official site of Arachnamania, a fun and informal weekend of driving tours and social events dedicated to Porsche 550 Spyder replicas. Held in Northern Arizona each autumn, Arachnamania takes place in a driver's paradise of twisty, white-knuckle mountain roads and incredible Southwest desert scenery. There are big drives on Saturday and Sunday, dinners both nights, and Spyder schwag given away throughout the weekend.