* Customization: Many luxury cars offer extensive customization options (unique paint jobs, interiors, etc.) that dramatically increase the price. A base model may be expensive, but a heavily customized version will cost significantly more.
* Rarity: Extremely rare, limited-edition vehicles often fetch prices far exceeding their original MSRP at auction.
* Condition: The condition of a classic or vintage car heavily impacts its value. A perfectly restored car will be much more expensive than one in need of repair.
Therefore, while certain brands like Rolls-Royce, Bugatti, and Koenigsegg consistently produce some of the most expensive *base model* cars, the *most* expensive car ever sold is usually a specific, unique vehicle that has changed hands in a private sale or auction. These records are constantly shifting.
