Quote:
Originally Posted by Phase
More horsepower and more aero, you’d think the highway mpg would skyrocket with that…
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Generally speaking, the more horsepower you add, the worse the fuel economy gets.
As for why Hyundai still holds the crown for EPA, that's tough to say. According to Fuelly, in the real world the 4th gen Prius averages 2-3mpg higher than the Ioniq, despite the Ioniq being EPA-rated some 3-4mpg higher. They're both within spitting distance of each other though, and when they're that close, it kindof ceases to be important.