When MB put the m104 in the 300e, in 1993, they offered it in either 2.8 or 3.2, right? From what I've been able to find so far on the net, both engines seem to have had the same fuel economy. If the 2.8 didn't burn less fuel, then why would anyone want it? It doesn't seem like the differences between the two displacements would make much difference in the cost of the motor, so what was the story? If I remember correctly, the 2.8 was dropped the next year.

Somebody out there must be able to shed some light on this one for me.