Start with what we actually know, which is not much. A Truth Social post is not a regulation. Fuel economy standards are technical instruments developed through NHTSA and EPA rulemaking, with lead times, compliance schedules, and legal review built in precisely because automakers need years, not weeks, to retool factories and supply chains. Announcing that new standards have been 'approved' before the specific numbers exist inverts that process: the political announcement arrives before the administrative substance does. That is a governance problem independent of whether the eventual rule turns out to be good policy.
On the substance, the claim that looser standards will cut manufacturing costs and lower vehicle prices is plausible in the narrow sense that compliance costs are real and relaxing them removes one input cost. But 'lower compliance cost' is not the same as 'lower sticker price' — pricing depends on competition, input costs, tariffs, and demand, none of which this story addresses. Treat the price-savings claim as a political prediction, not a demonstrated outcome, until the actual targets are public and independently modeled.
The more interesting tradeoff is regulatory whiplash itself. Automakers spent real capital planning around the Biden-era efficiency and electrification targets. Reversing those targets doesn't just change future costs — it strands some of that prior investment and signals that fuel economy policy in the U.S. now swings hard with each administration. That unpredictability is itself a cost, arguably a bigger one than the stringency level of any single rule, because it makes multi-year manufacturing decisions harder to underwrite regardless of which party is in power.
There's also a competitiveness question worth taking seriously rather than dismissing as culture-war noise: other major markets, particularly China, are moving hard into EVs and hybrids. Loosening the domestic push toward electrification may reduce near-term compliance burden, but it also risks ceding technological ground in a sector where efficiency standards were functioning as an industrial policy tool, not just an environmental one. Whether that tradeoff is worth it depends entirely on details we don't have yet.
As for automakers supposedly reaching out about building vehicles in the U.S., that's an unverified, self-reported claim inside a social media post, not a documented commitment. It should be read as a political talking point until there's an actual announcement from GM, Ford, or Stellantis with specifics attached.
The honest verdict: this is a policy direction, not yet a policy. The framing promises savings and manufacturing gains without showing the math, and it was delivered through a channel that bypasses the normal signals — proposed rule text, cost-benefit analysis, public comment — that let outside observers actually judge whether the claims hold up. Judgment should wait for the targets. Skepticism about the sales pitch should not.