The District of Columbia already has weight-based car fees, requiring owners of the biggest cars and trucks (6,000 lbs+) to pay hundreds of $$ per year. 

That's a much stronger policy than what Colorado is proposing.

https://www.bloomberg.com/news/articles/2022-05-26/a-new-way-to-curb-the-rise-of-oversized-pickups-and-suvs

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