Step inside America’s greatest garages, where rare cars meet real market stakes.
Season 4 puts you on the ground at major collector car auctions as experts Keith Martin and Donald Osborne inspect standout machines and weigh what they are truly worth. From an alloy-bodied Gullwing to an Aston Martin DB6, Maserati 3500 GT Speciale, and Ferrari Europa GT, each appraisal reveals how rarity, condition, and history shape the final bid.
Episode guide
13 episodes- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Frequently asked questions
Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like What's My Car Worth? (Season 4). Stream it all ad-free, anytime.
What's My Car Worth? (Season 4) streams with every plan.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.

