Fifity years ago, friends and car junkies Tom Barrett and Russ Jackson held an auction of their personal auto collections. What was supposed to be a one-off event turned into one of Scottsdale's premier occasions each year.

This year, collectors, buyers, and curious onlookers alike were surrounded by more than 1,800 cars at Westworld in Scottsdale. Regarded as one of the world's greatest collector car auctions, auto enthusiasts from all over arrive in the desert in hopes of being the highest bidder.

In this week's episode of Valley 101, a podcast by the Arizona Republic and azcentral.com, we bring you the history of the famous car auction and talk with sellers and buyers about why they come to Barrett-Jackson each year.

Learn more about your ad choices. Visit megaphone.fm/adchoices