Submitted by Live_Strongerrr t3_10o8vih in explainlikeimfive
sault18 t1_j6dd9dj wrote
Reply to comment by chaoswoman21 in Eli5 why aren't gas only vehicles far more fuel efficient than before by Live_Strongerrr
But there's a similar situation going on with hybrids. The 2023 Prius gets slightly better fuel economy as the 2003 Prius. It's gone from a 1.5L engine to a 2.0L engine over that time. The 2023 is 350lbs heavier, explaining a lot of the stagnation in fuel economy.
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