That's... probably not enough? I don't think $200/year for each electric vehicle would be anywhere close to paying for road maintenance.
They really ought to switch to taxing the tires instead of fuel.
I disagree. People already run tires dangerously bald. We shouldn't attach further economic disincentives to replacing safety critical components.
Just tax based on the odometer reading when people renew their registration each year. It's not that damn hard.
A gas vehicle driving 15k miles a year at 28mpg only pays about $99 in federal gas tax. The rest is state and local where it matters more, as they have way more lane miles to manage than the feds.
What does the average American pay in gas taxes each year?
Or you could just tack on a lump EV-only tax to discourage electric adoption.
vs 
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