I am still trying to get a response to my question about different levels of price and quality of the MB hardtop. My co-worker who has an SL600 told me that MB told him that there are 3 different prices for the hardtop. He claims the variation is due to the level of soundproofing and interior trim. Is this true? Also will a late model "Panorama" top fit a '91 to '94 SL?