The Internal combustion engine isn’t simple, the drive-shaft isn’t simple. These are all complex mechanisms (and I’m a mechanical engineer).
i much preferred carburetors over fuel-injection, as the only way to get revs is to down shift since simply stepping on the throttle is still limited by how fast the injectors pump and therefore forces you to down shift for revs
and since for the first time in my life, i am driving am automatic... and even shifting the car into sport mode and trying to force a downshift i am still over ridden the rheostat driven throttle as to if i will or i won't get the revs i'm asking for, that and the shift program in the transmission computer, as opposed to simply opening the secondaries on a 4-barrel
that aside, when the cam does come alive... i really do love my inertial spring driven variable valve timing!!!