Jim, were the reds faded that differently? Or is that camera - lighting - computer screen?
Lighting. The bottom two pictures were taken a couple minutes apart. I turned off the flash on one to reduce glare on the tape.
That said, there were different shades used in the '68 red interiors. The upper dash has a burgundy color code and the dash pad, visors, door and dash pull, window cranks, and lock pulls used that burgundy as a contrast. The vinyl, particularly the Comfortweave, did darken significantly over time, the seats being the most affected. Looking at unexposed portions of seat materials confirmed that the original red Comfortweave I found to make new seat covers was correct even though it was much lighter.
