With downsized engines, turbocharging, electrified powertrains, wind-cheating aerodynamics, safety-mandated proportions, and lightweighting, among many other strategies, modern passenger vehicles are*dramatically different than those of a decade ago—and, more than ever, that’s a product of regulation. Tougher fuel-economy regulations adopted in 2011 are a strong influence and continue to ramp up toward a required fleet average […]
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Long Haul: EPA Sets 2027 Efficiency Standards for Trucks and Big Rigs
