How much is the most expensive car in world?

There's no single definitive answer to "the most expensive car in the world" because prices fluctuate, bespoke features can dramatically alter cost, and some sales are private and not publicly disclosed. However, cars frequently cited among the most expensive include various one-of-a-kind models or extremely limited production hypercars from manufacturers like Rolls-Royce, Bugatti, and Pagani. Their prices often exceed $10 million and can reach into the tens of millions depending on options and the buyer.