On December 10, Sotheby’s auction house in New York will be holding an auction on over a couple dozen automobiles. One of most interesting items is the 1964 Porsche 356C 1600 SC Cabriolet that had been owned by Janis Joplin. The car is painted with a psychedelic design. The car is being sold by Joplin's brother and sister. This could be a bargain for all you billionaires and billionaires-to-be out there as the automobile is expected to hammer for $400,000 .