Here are a few contenders for the title, depending on how you define it:
Currently in production:
* Bugatti Bolide: This track-only hypercar has an estimated price tag of $4.8 million USD (estimated as it's not technically sold, but rather offered to select individuals).
* Bugatti Chiron Super Sport 300+: With a limited production run and a top speed of 304.77 mph, it's priced at $3.9 million USD.
* Mercedes-Maybach S 680: While not as expensive as some supercars, it's the most expensive production car available for sale. Priced at $231,950 USD.
No longer in production:
* Rolls-Royce Boat Tail: Only three were ever made and sold for an estimated $28 million USD each.
* Pagani Zonda HP Barchetta: Priced at $17.5 million USD, this one-off hypercar was sold to a private collector.
Cars sold at auction:
* 1962 Ferrari 250 GTO: This classic has been sold for over $48 million USD at auction.
* 1957 Ferrari Testa Rossa: A similar story, this car has also sold for over $48 million USD at auction.
It's important to note that prices can vary depending on the specific configuration, options, and market conditions. Therefore, defining a single "most expensive production car" can be subjective.