If the compression is good even a 200D should move at a decent pace.
I giggled just now. If by decent you mean "like a glacier" then yes. I've driven many a 240D and the 0-60 time is best clocked with a calendar.
There are a few how-to books covering turbos that I've read and i consistently read that any engine can safely take 5-10 lbs of boost without major mods. Mercedes is known for over engineering their cars so I'd be utterly confident the tranny could take the pounding, as could the engine.
As for the cars not able to handle the higher speeds, I'm not sure I would agree ...