I don't sell parts and don't make a cent off any parts sold. I've been answering the question "where can I get parts" for so long I simply include it ina sigfile so I don't have to answer it any more.
Fantasy. 90% of the parts for a 50's 190SL are still available from the factory. Try getting a door handle for a 240Z and lemme now how that works out.
German cars age well. They're meant to be repaired. There's lots of old ones about. Japanese cars don't age they're recycled into cans.
In the short term, say after the warrenty expires to about 10 yrs perhaps Japanese cars are cheaper to maintain (although this wasn't my experience with a half dozen of them) but longer term? Fuggetaboutit.
While the warrenty is in effect it's all the same.
Keep in mind my newset car is 23 years old. Maybe it's me but I don't see a lot of 23 year old Japaense cars running around.
You no doubt like your car(s) and I like mine and I'm happy for that but I spent a lifetime finding out my dad was wrong about the cost of fun cars. And I'd hate to think anybody made a decision to buy a Japanese car over one that was more fun because of something stupid somebody said on usenet.