6) Bugatti 16C Galibier Concept – $2,150,000

Bugatti’s most exclusive, elegant, and powerful 5-door fastback automobile. Presented in an invitation-only show held at the Molsheim, France in 2009. The 16C Galibier remains an epitome of luxury, it is touted as the world’s most luxurious sedan. The top speed of this concept car is 350 kmph (217 mph). It is powered by 8 liter W16 AWD engine (800 hp and 588 kW). It can accelerate from 0 to 100 kmph in just 3 seconds.