There's a 300CD at my friend's yard with two cars stacked on top of it, and its maintaining its structure perfectly after many months.

Its a strange car... some kind of spoiler on the trunk.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!