Bet you don't even need a permit, in reality to put on the door on that three-sided carport. I would just feign ignorance that such a silly change would require a permit!!!!

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1983 300D, the "Avocado"
1976 240D, 4-spd the "Pumpkin", SOLD to Pierre
1984 190D, 2.2L, 5-spd, my intro to MBZ diesels, crashed into in 2002