Click above to jump to episode six of the Project M web video series

After the first and subsequent four webisodes of Stile Bertone's Project M hit cyberspace, everyone's wanted to know just what the upcoming supercar would be based on. Talented young designer Jason Castriota has designed Ferraris, Maseratis, Rolls-Royces and more, but since leaving Pininfarina to head the reborn Stile Bertone, would his projects employ the same exotic underpinnings? Initial speculation was that the trickle-teased Project M was based on the Nissan GT-R, but those and other rumors can now be finally put to rest with the release of the sixth episode of the Brad Farrell/KineticFic-produced web series.

We won't spoil the surprise for you, except to say that it's genuine Detroit steel which Castriota's playing with here. Follow the jump to view the video and find out for yourself.