As of my last knowledge update in January 2022, here are some of the most expensive cars in the world. Keep in mind that the automotive market is dynamic, and new models may have been introduced since then. Additionally, prices can vary based on specifications, customizations, and market conditions.

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Bugatti La Voiture Noire:
- Price: Estimated at around $18 million
- The Bugatti La Voiture Noire is a limited-edition hypercar known for its sleek design and powerful performance.
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Pagani Zonda HP Barchetta:
- Price: Estimated at around $17.5 million
- The Pagani Zonda HP Barchetta is a rare, handcrafted hypercar with a distinctive design and high-performance capabilities.
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Pagani Huayra Roadster BC:
- Price: Estimated at around $3.5 million
- The Pagani Huayra Roadster BC is an exclusive, high-performance convertible with advanced aerodynamics and craftsmanship.
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Bugatti Centodieci:
- Price: Estimated at around $9 million
- The Bugatti Centodieci is a limited-production hypercar paying homage to the iconic Bugatti EB110.
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Mercedes-Maybach Exelero:
- Price: Estimated at around $8 million
- The Mercedes-Maybach Exelero is a one-off high-performance luxury car with a distinctive coupe design.
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Koenigsegg Jesko Absolut:
- Price: Estimated at around $4 million
- The Koenigsegg Jesko Absolut is a hypercar designed for top-speed performance, featuring advanced aerodynamics and a powerful engine.
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Bugatti Chiron Super Sport 300+:
- Price: Estimated at around $5.7 million
- The Bugatti Chiron Super Sport 300+ is known for its record-breaking top speed and high-performance capabilities.
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Lamborghini Sián FKP 37:
- Price: Estimated at around $3.6 million
- The Lamborghini Sián FKP 37 is a limited-edition hybrid supercar with a unique design and advanced technology.
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Ferrari Pininfarina Sergio:
- Price: Estimated at around $3 million
- The Ferrari Pininfarina Sergio is a limited-edition roadster designed to honor Sergio Pininfarina, the former chairman of the company.
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Aston Martin Valkyrie:
- Price: Estimated at around $3.2 million
- The Aston Martin Valkyrie is a high-performance hypercar developed in collaboration with Red Bull Racing, featuring cutting-edge aerodynamics and a hybrid powertrain.
Please note that prices are estimates and can vary based on factors such as customizations and market conditions. Additionally, new models may have been introduced since my last update.