I don't want to hijack the thread, but i logged on tonight with the same question in mind, as i found this car in Houston.
https://houston.craigslist.org/cto/d/1991-mercedes-350sdl-turbo/6420105471.html
European Delivery Benz, Euro seats (no leather), looks like it is in mint condition. Trans rebuilt, but nothing on engine.
My dad wants to have a Bug out Benz, that he will drive very little, but can start up if an EMP goes off. he can either go all out and get this nice beauty or go ultra simple with a 240D manual (like me

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Grey '91 350SDL 214k Dad's car FOR SALE!!
Beige '81 240D 4 Speed 254k SOLD
Blue '82 300D 225k SOLD
White '95 E300D 46k SOLD
Blue '87 190D 2.5 Turbo 315k SOLD
Brown '80 240D 4 Speed 716k SOLD
Beige '80 300D N/A 119k SOLD
Blue '85 300D Model 186k T-Boned