Gamaliel Perales

I think the option was leather, cloth was most likely the basic seat. My 1982 has cloth seats and Al Knoch had the exact replacement back in 1994 but they don't anymore. I live only 25 mile from Al Koch I have stopped at his place several times. He is a very nice person and they do convertible tops also.

Lakeside49

You might be surprised that your assumption is actually the exact opposite. Leather was the standard and a very high-grade fabric was a no-coat option. I bought my ‘82 with those nice velour seats from the original owner (wife of an Eastman-Kodak executive) who said that cloth was far more comfortable in Rochester, NY’s renown hot/humid summers and cold winters, although she garaged it after the first snowfall which evidently is not a C3’s native element.
I found a batt of the original silver gray velour fabric at SMS, Inc. and had Al Knoch see the replacement covers and add new foam and couldn’t be happier - they are incredibly comfortable once the new, firmer foam is broken in after a few cruises. 😎