Lamborghini's $2.3-million Centenario Roadster is already sold out

Lamborghini just unveiled the Roadster version of the most powerful car it has ever built. And it's already sold out. To celebrate its 100th anniversary earlier this year, Lamborghini unveiled the limited-edition, $1.9-million Centenario Coupe supercar. More than just a present to itself, the Centenario looks like what a bumble bee might design, if it were trying to build a super weapon. SEE ALSO: Mercedes' new all-electric Maybach coupe concept puts Tesla to shame Turns out, though, the Coupe i