Three classic Porsche models from Jerry Seinfeld’s extensive car collection are set to be sold on March 11 and collectively, could sell for upwards of $10 million.

The most valuable of the trio is an unrestored 1955 Porsche 550 Spyder that’s covered just 10,300 miles. The same model which James Dean infamously died in, Seinfeld’s the 550 Spyder still has its original chassis, body and engine. Gooding & Company, the auction house selling the car, believes that it will sell for between $5 million and $6 million.

The next most expensive of the three is a Carrera Speedster from 1958. It is painted in a unique shade of green and is one of just 151 units ever produced. Its sale comes not long after it was restored and walked away a winner at the recent Quail Motorsports Gathering in the U.S. Auctioneers suggest it could sell for $2 million.

Last but certainly not least is a 1974 Porsche 911 Carrera 3.0 IROC RSR, once owned by Roger Penske. It was raced by Peter Revson, George Follmer and Gordon Johncock in the International Race of Champions series and is expected to sell for between $1.2 and $1.5 million.

Jerry Seinfeld himself said “I just love cars. And I still love these cars, but it’s time to send some of them back into the world, for someone else to enjoy, as I have.”

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