The floor cross-section from top to bottom: Carpet, foam padding, plastic layer (these portions can be lifted up like a floor mat) asphalt sound deadening material, metal floor, undercoating, air

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine