um both are the same the S2000 didnt change its front bumper, side skirt, rear bumper, wing, head lights, tail lights until 2005. When the 05 model came out it had a 2.2L motor vs 2.0L and had less HP more trq. 2006 is the same in every wat then the 2007 how to tell look at the vin and carfax or grab the plate register and read it