Brian Henniker/Gooding & Company
The three cars to cross the block - a 1955 Porsche 550 Spyder, a 1958 Porsche 356A 1500 GS/GT Carrera Speedster, and a 1974 Porsche 911 Carrera 3.0 IROC RSR - have a combined pre-sale estimate of around $10 million.
Seinfeld is a devoted Porsche fan, having purchased his first 911 in 1988. He then grew his collection into a physical history of the German sports car maker.
Just some of his cars: one of the first ever Porsches, a 1949 Porsche 356/2 "Gmund"; the first 911 to be imported to the United States in 1964; the last ever-air cooled Porsche, a 1998 993; and the latest Porshe supercar, the 918 Spyder.
His love of Porsche has been evident through his television projects as well. Cars from his personal collection are often used in his web series, "Comedians in Cars Getting Coffee," and a poster of an airborne 930 was proudly featured in his vaunted NBC sitcom "Seinfeld," gracing his apartment wall.