Janis Joplin's 1964 Porsche 356 C 1600 SC Cabriolet has become the most expensive Porsche 356 to ever be sold at a public action.

Janis Joplin's 1964 Porsche 356 C 1600 SC Cabriolet has become the most expensive Porsche 356 to ever be sold at a public auction.

During last night's Driven By Disruption action in New York City, the psychedelic model sparked a bidding war among seven different people.  This drove the car's price up to a record-breaking $1.76 million which far exceeded the pre-sale estimate of $400,000 to $600,000.

The car was purchased by Joplin in 1968 and she enlisted friend and roadie Dave Richards to customize the convertible with a unique "History of the Universe" mural. RM Sotheby’s says the resulting design makes the model one of the "first true ‘art cars’ and one of the most famous and important Porsches of all time."

After Joplin passed away, the car eventually made its way to the Rock and Roll Hall of Fame Museum in Cleveland, Ohio.  It has been on display at the museum for the past two decades but Janis’ siblings, Michael and Laura Joplin, decided it was finally time to give the car a new home by auctioning it off.

Note: Auction price includes a 10% buyer's premium

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