The last quad-turbo W16 Bugatti roadster is heading to Monterey, and the market wants far more than the car ever cost when newBugatti built just 99 Mistrals, making it rarer than the Chiron under it. Not long after Bugatti wrapped production of the Mistral, and with Tourbillon deliveries still to come, one of the rare W16-powered roadsters has surfaced on the open market. Read: The Shifter In This Bugatti Mistral Probably Costs More Than Your CarBugatti built just 99 examples of the Mistral, making it significantly rarer than the Chiron on which it is based. A look at the window sticker reveals this Mistral had an original price tag of €5.325 million, or $6.055 million at current exchange rates. Come its sale at Monterey Car Week, it’s expected to fetch between $7.5 million and $9.5 million.