Well, in the pursuit of refining my desired look for the Riviera I am trying to find an OEM style solution to the center caps. One of the stupid decisions for the 70 Riviera was to intermingle the oval R symbol while also having the "Riviera" script intermingled on and in the car. The oval R is only on the rear corner lights and the wheel cap centers. The wheel caps are heavy and require imho excessive maintenance as they sqweak, work loose, get dirty easy and...yeah they are kinda ugly. I even put a shield emblem in place because the R just bugs me. In fact, the car has been run for years without center caps and I am now getting back to a solution. So I am in the process of fitting and find a mounting solution for the smaller circle medallions that were used on other big cars. The problem is the wheel center hole is too small on the Riv wheels. Here's some photos for reference.