Manual Transmission Boxster is rated at 20 mpg City / 30 mpg Highway for a combined 25 mpg on a 265 hp engine.
The Z is rated at 18 mpg city / 26 mpg highway for a combined 22 mpg on a 332/348 hp engine.
So you can be disappointed in the Z's mpg, but there's no disappointment if you compare it to the Boxster mpg.
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