The head of a major auto auction house explains why the Porsche 911 is the next hot collectible

The auction headlines and record prices have been commanded by Ferrari, but Porsche has been coming on strong.Gooding & Company head David Gooding explained the surge in interest in Porsche 911s.Gooding & Company is auctioning three important 911s from the collection of WhatsApp founder Jan Koum.There's no question that for some time now, the collectible car auction market has been ruled by Ferrari. Examples of the Prancing Horse have broken records — last fall at Monterey's legendary motor week, a 1962 Ferrari 250 GTO saw a hammer price of $48.4 million.But here's the thing: There aren't that many rare Ferrari's in the world. So what's a collector to do？According to David Gooding, head of the Gooding & Company auction house in California, consider Porsche.Read more: 21 cars that won't let you down and are worth splurging on.There are many more collectible Porsches than Ferraris out there, and one model, in particular, is seeing a rush of interest — the iconic 911, in continuous production since 1963. Gooding is auctioning an especially interesting trio of air-cooled 911's from the 1990s at the upcoming Amelia Island Concours in Florida: blossom yellow cars from the collection of WhatsApp co-founder Jan Koum.Gooding discussed his business and the surging interest in 911s at auction in an interview with Business Insider: