This may have been covered but I made an observation this weekend on the different steering wheels in my two birds. The only interior difference other than the color is the wheel...AND... something I never noticed before. On the coupe with the "nice" wheel the dash pad has the deluxe chrome trim around the front. The vert with the standard wheel does not. I have these cars for so long that if I did noticed it before I'd forgot. Maybe that tim came with the wheel option difference?
1st pic has the same dash pad and wheel my 1st 68FB had with std interior. 2nd pic looks like a wheel from a 60's PU truck.