"Cars generate roughly 5,000 liters of of CO2 per gallon."
That is a typical passenger vehicle, which is also quite old.
Not a current vehicle. SEe the calculations, which explicitly states:
"This is representative of the light duty passenger
vehicle fleet as a whole, including both new and existing vehicles. "
I'm kind of uninterested in participating in this global hate fest further, but let me quantify this for real for you:
I have a lab certified co and co2 monitor i use as part of a supplied air system (For spraying wood coatings that contain isocyanate).
If i take a car from the late 80's or early 90's, put it in the garage with the monitor, and start it, the monitor will go off in few minutes telling me it's unsafe.
If i take a car produced today, and put it in the garage, and start it, it takes many hours before that happens.
In fact, depending how well sealed the garage is, it won't happen at all.
(as an aside, this also means it's become much harder for people to commit car based suicide unless they have a very well sealed car, etc)
So i'm going to go with "This statistic is true but grossly misleading". It tells you nothing about what converting a newer car to an electric car does in terms of emissions.
Worse, given that it is mostly caused by existing vehicles, and even there, it is mostly caused precisely by the vehicles this subsidizing will do nothing to replace.
It is precisely the people i talked about you need to get to drive electric cars.
Not the rich people driving very up to date low-emissions vehicles anyway.
So you can cite this kind of stuff all you want. It doesn't make the plan of rich people lanes any better for the environment.
(Which is why people go for these very silly proxy and indirect support arguments to make themselves feel better).
"But even if you were right, what's the point of this comparison? We can eliminate the CO2 emissions from cars, but we can't do that to people, and we really need to cut these emissions a lot, or the earth will cook.
"
I actually completely agree, but that's completely irrelevant to giving special treatment in HOV lanes to people who mostly owned cars that were not the problem anyway!
IE you'd be much better off saying "if you trade in your car from 1970 for an electric car, you get a sticker", instead of "if you trade your 2016 PZEV for a 2017 tesla, you get a sticker".