Various other sources indicated those restrictions of 50% on tail pipe emissions are so strict they're having the same effects as mandates or bans on the kinds & sizes of vehicles that people prefer to drive.  

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Sorry Jim, this blows a big hole in the govt claiming it has not imposed bans or mandates.  Exposes how that claim is fictional.  Its a coverup of the bottom line effects

This likely will result in many folks continuing to drive their older, more polluting vehicles.  Yet that choice will help prevent power shortages by lowering electrical demands for recharging.  But fossil power plants could linger on if power needs are increased by EVs   

But yet its helping folks budgets by not buying extravagantly priced EVs.  Also there's no gain in emissions saved until EVs travel 60,000 miles, because the pollution in building those huge batteries needs to be offset

Hmm sounds like so many chaotic cross currents of factors that Biden is pushing onto the nation.