That's the same MPG I average with my 420. And its always under 2,200rpm in the city easily....the engine is bored under 55mph. The other day I was making a turn on dry pavement and kicked it down to 1st/floored it and completed my turn with tire squeal and some drifting action. That's what I am talking about Lets see an an M103 do that in a W126. It can (sort of) in a W124....but its just not the same. Its all about the torque in a huge car like a W126.

Keep in mind the V8 can light up the tires like that with a 2.47 differential. The M103 has like a 3.69 or something and is still slower.

80Mph in my 420 is about 2,900 rpm and silent.

__________________
-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)