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












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.
Plans are billed annually — every plan streams in 4K. The Smart Bundle adds four partner services. There are no contracts — cancel anytime.
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.
Yes. The library is full of family-friendly nature and science programming, and the Smart Bundle includes Kidstream — carefully chosen, ad-free shows kids will love and parents can trust.
Absolutely. There are no contracts and no cancellation fees — manage or cancel your plan anytime from your account settings.
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.
Yes. Start on any plan and move up to the Smart Bundle whenever you like — the change takes effect right away, and your billing is simply prorated from your account settings.
Start watching What's My Car Worth? (Season 4) today
Stream thousands of award-winning documentaries. Cancel anytime.



