The codes for the paint and interior trim colors of the MKI MR2 can be found on the front side of the front trunk.
The codes for the paint and interior trim colors of the MKII MR2 can be found on the VIN label in the driver’s door jamb.
For paint codes/colors by year refer to http://www.scionlife.com/toyota/#MR, and http://www.mr2oc.com/showthread.php?t=240.