Koenigsegg Agera the world's most expensive cars

The $1.5-million Swedish Koenigsegg Agera goes from zero to 100 in under 3.1 seconds. Agera means "to act" in Swedish, and is also short for the Greek word Ageratos, which in ancient Greek means "ageless." The body of the car is made from carbon fiber and aluminum, with the shape and concept of the Koenigsegg CC created 15 years ago. It has a 910-horsepower 4.7-liter V8 engine that goes 0-100 in under 3.1 seconds, and its wheels generate a vortex to suck hot air away from the brakes. Fewer than 20 will be made each year.

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