We are an eclectic crew here. Sure there are a lot of purists, but there are a lot of us that are just happy to see the cars still on the road, regardless if they are original or not. If gremlins broke into my car and replaced my <60hp OM615 engine with a OM617A turbo, I doubt I would be too sad about losing the "all original" status. 75 mph would be mighty nice on occasion.

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).