SEM makes some excellent paints for vinyl. I have used their "Shadow Blue" (#15043), which is a near-perfect match for the dark blue interior of my '85 and '87 300Ds. It covers other colors without a primer -- I have used it over both black and tan Mercedes colors. The results match my existing blue interior so well that you pretty much have to be told it's been painted. Google "SEM paint" for more info and various buying opportunities. Comes in spray cans for US$10-15 depending on the vendor.

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970