well I've been checking out the web on the differences if the 2006-2007 bodys
so far I have found this.
the 2007 headlights do not raise with the hood, and are rounder
the 2006 has wrap around glass on the "c" pillar pod on the rear over the tail lights
the rear bumper on the 2007 seems to stick out farther
the cooper emblem and louvers on the side fender is wider on the 2007's FYI
see comparison pics below I done up in photoshop
in this shot the gas tank is on the same side, I just had to flip one of teh pictures horizontal to get them pointed the same direction