I just found out about the W211 E420 CDI and it came out in 2005 [or so I read]!
If you've just heard about it like me just now [I wasn't ever a fan of W211s even working on them *too new for me*] get this:
317HP, 540 FT Pounds of Torque roughly. Pulls 0-60 at 6.1 seconds flat.

It's a V8, 4.0 LTR. Some folks brag it could slam a Duramax I've seen on other forums. No videos tho yet. I wouldn't be surprised if it would trash a few small block Chevys too [stock of course].
E420 CDI 414HP/745FT LBS Kleemann
Stock E420 CDI 0-250KMH
2030 I'll be importing. 1 parts car, one driver.
W211 folks weigh in.
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Only diesels in this driveway.

2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k