What's going on? The credibility of the whole classic car universe is at stake. Kenny Hayne, don't go home! Get Rowena and rev up the machine again.

Not only is classic Porker collector and former TV personality Jerry Seinfeld being sued for selling a fake but classic car, dealer and former fang carpenter Derek Hood and his wife Sarah of JD Classics are being sued for $120 mill amid allegations he fibbed about the value of some classic cars and that a replica Ford GT40 Mk1 was the real deal.

Of course, we've seen that in Australia. Last September The Australian exclusively revealed there are serious questions about the provenance of the said to be Peter Brock-raced 1989 Mobil 1 Racing Ford Sierra Cosworth RS500 that was being auctioned online by Gold Coast-based Lloyds Auctions.

Anyway, in a document filmed by the quaintly named Fica Frio Limited, FF's lawyers say: "In March 11, 2016, at an auction held by Gooding & Company at which Mr Seinfeld and Fica Frio's representatives attended in-person in Amelia Island, Florida, Fica Frio purchased a purported 1958 Porsche 356 A 1500 GS/GT Carrera Speedster from Mr Seinfeld for $US1.54 million. However, the vehicle is not authentic."

WART's expert on classic car values, Hagerty's Dave Kinney, says of the Seinfeld Porker: "Old cars with a history grow a history based on a fact that is a cornerstone. But Porsche's records are not always perfect."