2011 Porsche 997 Speedster

seinfeld auction porsche 997 speedster
  • Estimated value: $300,000 - $400,000
  • Sold: $440,000

This car, which Seinfeld bought new from a Manhattan Porsche dealer, is a modern version of the Porsche Speedster formula. It's a Porsche 911 -- the number 997 is Porsche's designation for this particular generation of 911 -- stripped down for performance and with minimal comfort features. Even the the convertible top is manually operated. The 997 Speedster's original base sticker price was just over $200,000.

Correction: A previous version of this story mis-stated the estimated value for this car.

First published March 14, 2016: 12:56 PM ET

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