I live in Tustin Ranch (Jamboree / Irvine Blvd.) and have seen this car a few times. I find it funny becuase I have the same color car w/ an APS TT in it (but with Top Secret front end).

What I saw is 19" wheels, Greddy front bumper, Greddy TT intercooler, and a license plate attached to the front-side of the bumper.

I was in a Red Z this morning leaving keller drive, you were behind me then made a left on irvine blvd.