[Allen]

From what I've seen, the standard interior cars did not have the extra chrome edging around the speedometer area and perimeter of the dash bezel.

The custom interior cars, whether bench or bucket seat, got the extra bright trim. In addition to that, I believe they also got the bright trim around the pedals, the accented door panels (parchment in 69-69, woodgrain in 70-72), carpet, and maybe a couple of other little goodies.