ill give you a different paint shader to try.
other than that it could be the problem would be the hdri image could be not positioned right or something.

download this shader from me, and import it into your scene and apply it to the paint instead of the one you are currently using.

www.3d-dan.com/img/paintshader.mb


in your hdri lower your color gain so its not so bright.

on a side note, the honda integra type r had 5 lugs on the rims, not 4