I don't have a clue as to what type of "engineer" you consider yourself to be
(maybe it's a title of some certificate you got from Microsoft, but Microsoft
doesn't get to certify "engineers" in my profession), but you need to slow
down your presentation, and check your spelling, often.
I doubt you've seen a Ferrari "in action" except for the things on TV races.
Even Ferrari cannot make a Sentra perform as one, I doubt you have the skills
either, but  you're correct that lightening the engine's load will increase
the performance where it counts.
I followed you up to the point where you consider that your creator (come on
out and tell us who that is) cares enough to be testing us on our earthly
sojourn as to whether we've used our minimal allotment of gasoline/petroleum
products.  IMO the petroleum's been around longer than most biblical zealots
will admit to the age of the planet, and I've never seen any specific biblical
reference that the creator buried the stuff deep underground to prevent its
discovery until the last part of the last millenia.  IOW if we ever do meet a
cosmic thunderer, or classical biblical god, I doubt fuel consumption will be
high on the list of "sins" used to cast us into the lake of fire and brimstone
(and just what is he using to keep that thing going?).
There's a large portion of the human population that's never even ridden a
motor driven conveyance, according to your zealous logic, they're truely going
to be blessed.  If so, then it matters little that you're using up the
gasoline they're never going to need anyway.
You also have a huge misconception (thanks Nissan) about PZE.  First off,
idling, you're not ZE, in fact you're probably doing nearly the maximum
allowable by mandate emitting.
Nissan gets to slap the Sentra with PZE the same as any other manufacturer
can, you turn off fuel injectors during deceleration.  That's it.  There's not
more to PZE than that, does that mean there's no pollutants coming out of the
exhaust?  Nope, it means that for one injector's cycle, fuel wasn't
introduced, so there's no emissions for that one injector's cycle.  The ones
that did supply fuel probably did pollute, but hey, we need to make guys like
you feel good.

I totally agree. I refused to buy these as well. I have been eying up a
Trek bicycle recently (they're really cheap compared to cars), the sales
guy claims it is totally emissons free, is very light as compared to the
average SUV and it has health benefits over SUV's such as reduced body
weight, blood pressure and cholesterol.

I am still trying figure out how I can attach a hitch to tow a trailer
and boat. For some reason no one sells one for a bicycle.

JP