Yes my headliner is like Michael’s, foam is now dust. I don’t have the hardtop on my SL much, but had to put top on to transport car on auto transporter to ship to Florida. However did not transport after all (another story). So I put car back into my garage. Left hardtop on, the. Spring came and it was time for me to do some spring cleaning and get car ready for the AACA Grand Nationals in Virginia Beach. So I placed it in a local spring car show as a tune up for the Grand National event. As I drove to the local show, drove with windows down. I began to see all this dust in the cabin, why am I getting all this dust, and then realized that it was blowing from the tiny holes in the headliner. Yes the foam backing of the headliner was becoming just dust. Well when I got to show had to do lots of cleaning, dashboard, seats, boot cover, you name it dust everywhere. So now I have a winter project to do in replacing the headliner. Will need to order the headliner material, and the rubber seals for glass. Just another day in Pagoda land. Bob