Comedian Jerry Seinfeld’s Porsche collection is the stuff of legend. Reports suggest he owned as many as 46 rare and exotic examples, but 16 of them are being sold at the Amelia Island sale. This Porsche 917/30 Can-Am Spyder grabs top billing - one of just six constructed by Porsche - with this particular example enjoying success in the 1973 Can-Am Championship. In saying “the car’s crazy, I’m not”, Mr. Seinfeld is referencing the explosive pace of the 5.4-liter flat-12 917/30, admitting he wouldn’t dare floor it!This Porsche 550 Spyder stands a good chance of upstaging the 917/30, with an incredibly punchy pre-auction estimate. It was built in 1955 and delivered new to the US, complete with blue body and beige vinyl trim. Jerry Seinfeld acquired the 1.5-liter beauty in 2007, at which point it had travelled a mere 9,896 miles from new. Today it has 10,500 miles on the clock and benefits from its original paint and upholstery. Amazing.This is one of only 34 Type 718 RSK Spyders built and it boasts a rich North American motorsport history. Among the list of former owners is a certain Roger Penske, who acquired the car in 1960 after its original owner, Harry Blanchard, was killed in an accident while driving another Porsche Spyder. Mr. Seinfeld purchased the car in 2001.