The m103 is even pretty leisurely in a W124...in a W126 it will fall into the "slow" category. I am only willing to drive a slow car if it gets great MPG.....like my 190d.

My 420 slurps fuel like a beast but its also nice and fast, so its fine with me.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)