F. George McDuffee wrote:
If expert means being from out of town and on an expense account,
none, [I'm retired] but see
http://mcduffee-associates.us/vita.htm

Great, you're another citizen. Technically minded, but I see nothing in
economics. Considering the effects of mandates on the economy without
considering the human equation will lead to a bunch of money being
shoveled into a hole.

Please point out one command-controlled economy that is efficient AND
responsive.

In this case, how much the CfC vehicles are driven, what is their
service life, [compared to the vehicles they replaced], what is
the value of the cleaner air, what is the value of the additional
safety features (how much are a few lives worth?), how much will
be saved on repairs, and perhaps most important the
price/availibility of [imported] petroleum.

At what point does the nanny state stop? The safest vehicle would be a
totally immobile one with no engine. Sort of like the Flintstones car,
but with far more belts, roll cages, etc...

We could use less imported petroleum with more domestic drilling. Gas
would cost less with fewer boutique blends being produced. We can send a
few billion dollars to help Brazil's state run petroleum industry to
drill for oil, yet we won't let US companies even drill in the US.