I love my '95 Ian. It would have allot more kick if it had the turbo, but it is about the same as a turbo OM617. Very smooth and have plenty of power to move the W124 chassis.
I imagine the turbo version in the W210 would really be a fun engine to own, but I just could never get used to that back end of the W210, nor do I want to deal with the fault codes and limp mode issues.
Even the W124 with the 2.5 turbo is a very good car, but I just prefer the improvements made to the '95.....

__________________
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John