Barrett-Jackson LIVE - Day 6 coverage from the World's Greatest Collector Car Auction in Scottsdale, Arizona.

Barrett-Jackson LIVE - Day 3 coverage from the World's Greatest Collector Car Auction in Scottsdale, Arizona.

Barrett-Jackson, the world's leading collector car auctions and automotive lifestyle events, specializes in providing products and services to astute classic and collector car owners and automotive enthusiasts around the world.

Buyers from all over the world bid on classic beauties at the Barrett-Jackson car auction.

Coverage from the latest vintage collector car auctions.

They may think their classic cars are priceless, but owners get a true sense of what their rides are worth in this longtime Velocity series. Sports Car Market magazine Publisher Keith Martin provides the critical, expert eyes auto enthusiasts need to properly determine value. He visits car auctions across the U.S. to test drive some of the world's rarest automobiles for sale, from powerful muscle cars to stylish European sports autos. After an in-depth inspection and a deep dive into each car's history, Martin determines an accurate value before it races across the auction block. Comic/actor Josh Nasar ("Sons of Anarchy") -- a collector car junkie -- joins Martin on many episodes.

Wayne Carini chases cars for a living. Not literally, but if a vehicle were an iconic Mercedes Gullwing or a luxurious Maserati Ghibli, for instance, and Carini saw it in motion, it's a sure bet he would get himself in gear and run after it. That's how much this man loves classic cars, a passion that Velocity has captured for this series since 2008. Known as a "collector car archaeologist," Carini leads viewers into the business of locating high-end automobiles stashed in homes, garages and barns in the U.S. and abroad. When he finds a gem, Carini negotiates to buy it, then resells at auction or privately. Along the way he talks shop with respected collectors, restorers and artisans.

Ray Evernham has at least one thing in common with millions of other Americans -- he loves the rich, diverse history of U.S. automobiles. In "AmeriCarna," the NASCAR championship-winning crew chief and team owner searches barns, garages, junkyards and basements across the country, all in the pursuit of historic racing cars, classic cars, folklore and automotive artifacts. Along the way, Evernham hears plenty of stories from other enthusiasts who share the impact that iconic cars have had on their lives, among them director Ron Howard, surfing icon Laird Hamilton, Beach Boys legend Mike Love, country music star Brad Paisley, and drag racing king Don "the Snake" Prudhomme.

Rick Dore loves to bring automotive relics back to life, but first he has to convince car collectors to part with prized inventory. Dore, an award-winning custom car builder known for a radical sense of style, fearless use of color and cutting-edge design, is joined by an unlikely partner -- former pro wrestling superstar Chuck Palumbo, a longtime hot-rod purist who retired from the WWE in 2008 to pursue his passion for motorcycles and muscle cars. Together, they find car hoarders and offer to rebuild one dream roadster from the enthusiasts' overcrowded collections, while the hoarders cover the costs of the remakes by selling Dore and Palumbo other cars and car parts from their massive stockpiles.

Behind the scenes of the largest monthly car show in America.