On December 10, a colossal and colorful relic of rock-and-roll history will become available as Janis Joplin’s 1964 Porsche 356 C 1600 SC Cabriolet by Reutter will headline RM Sotheby’s Driven by Disruption auction in New York City. Purchased by the raspy-voiced rock legend in 1968, Joplin’s beloved car came with its original pearl-white paint, but she quickly customized it to match her more psychedelic sensibilities. She commissioned friend Dave Richards (who was also the road manager for her band, Big Brothe…