this post was submitted on 28 Mar 2025
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could you elaborate on that point some?
My understanding is that the emission standards are based on the type of vehicle and footprint, which encourages building the largest possible vehicles. Advancements in efficiency have been more than eaten up for by the ballooning vehicle sizes. We have a severe obese car problem.
There are exemptions to fuel efficiency standards in the USA for larger vehicles.
Not actually true, Obama's CAFE standards tied fuel efficiency to chassis size. It's stupid as hell, but it's why everything is an SUV now - easier to build a billion of those than actually innovate on engine tech.