As I mentioned, there is a lot of debate on this. I have seen the picture numerous times, and I still ask myself from which plant is this picture taken? Do the convertibles get something different than the coupes? Lot's of unknowns here, and I honestly don't know for sure, but the car I referenced with the gray primer is a true nearly perfect show car, with every number/nut/bolt correct. It has the gray primer, and I believe that information was provided to the owner by a former GM Pontiac executive familiar with the Van Nuy's built convertibles. This could be hearsay for all I know but I didn't want gray primer or black, so this was the option. I didn't want to cover up all the good work done to the bottom.