As if the exclusive Bugatti Chiron isn’t rare enough (400 of 500 have been built so far), this grand touring version is that much rarer. The target of 30 Bugatti Chiron Profilée models were set, but only one was actually built, and it’s headed to auction via RM Sothebys. The car distinguishes itself from the Chiron Pur Sport via a fixed tail, wider air intakes, a bigger grille, and a revised front splitter. Internals change with new steering and suspension, and a gearbox with shorter ratios. The Profilée also happens to be the quickest version of the Chiron, launching to 62 mph in a scant 2.3 seconds. Expect the winning bid to be significantly above the Chiron’s $3.3 million price tag.