dont mix it up
AMG offered 3 versions of the M104:
M104 with KE_Jetronic and 3.4 displacement 272hp @ 6500
M104 with KE_Jetronic and 3.6 displacement 292hp @ 6500
M104 with HFM Motronic and 3.6 displacement 272hp @ 5750
the 3.6 KE engine has 300Nm only at 3500rpm
the 3.6 HFM engine has 300Nm already at 1500rpm! like a CDI
the 3.6 KE engine has 220Nm at 2000rpm
while the 3.6 HFM has already 320Nm at 2000rpm
This is the big difference between the engines...