When the w140 came out I was a lad, but never understood why its so famous until i got into repairs and had clients that hired me for maintenance.
A well sorted out last edition w140 with fresh undercarriage parts is phenomenal to drive, the old adverts were true that claimed “giant that could do ballet” and it actually can, you can play with the car too and it remains composed, bumps? Lol, potholes? Lol.. crowned road? Lol road noise? Lol
It even had trickery in its driveshaft couplings to eliminate the feel of the final 2-1 downshift as you slowed down.
All these little nuances are only experienced if its set and done perfectly to the “dot” as MB wants it. Not just “ye chaley ga” (just getting the door card heaters to work takes a careful effort - all were leaky in pk ones.
Almost all of them are dead scrap now except some examples which are owned by people who can afford the 7000 usd/yearly upkeep of them.
Modern amg are even more to upkeep and even more if you have babban ustaad monkey with it.
Lets take a small example of a usual failure. Do these guys have the tooling to replace the updated teflon lip rear main seal of the m156/159 engine,
i was sent a picture to ask for help, some jackwagon had stuck a regular oil seal there.