Yeah, but sometime in the late eighties they started putting "Royal Seal" tires on the Broughams, and switched to a narrower whitewall on the other cars. The royal Seals has a 1" whitewwall, and a narrow gold stripe closer to the rim. So, if you were to have put new tires on your Brougham, it would be a judgment call if you went with 0.75 or 1.3" They stopped making Royal Seals in the mid '90s. Here's a picture of them. Some people mistake them for Vogues, even though they're reversed. Sorry I couldn't get a better picture, it's hard to see the gold stripe. I'll look around for a better one. But you can see how the whitewall is slightly farther out.
EDIT: Okay, in this shot you can see the gold stripe better.
