The first scale represents the EPA combined city and highway fuel economy for a vehicle.

第一种度量标准表示某种车辆EPA组合的城市和公路燃油经济性。

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Surpr isin gly, both cars produce identical fuel economy figures of 54.3mpg (combined) in the official fuel tests.

令人惊讶的是，两部赛车都产生相同的燃油经济数字的54.3 mpg(合并正式燃料测试)。

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On the Audi S6 and the Audi S7, the important numbers are 420 hp, 0 to 60 in 4.9 seconds and a combined fuel economy of 20 mpg.

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The marquee green car for the show was the Fusion Energi, a production-intent plug-in hybrid with, Ford says, a combined fuel economy of over 100 MPGe (a measure of gasoline-gallon energy equivalence).

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The sedan gets a combined city and highway fuel economy rating of 33 mpg, according to fueleconomy.gov.

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