The Toyota Mirai is really setting records, at least according to the car maker. Toyota just proudly announced that the 2016 Mirai has achieved the equivalent of 67 miles per gallon on city/highway/combined roads and a range of 312 miles, both based on EPA estimates.

That might not sound so noteworthy at first, until you take into account the fact that the Mirai is a hydrogen fuel cell electric vehicle. Thus, Toyota is claiming that it is the first of any zero emission vehicle to hit, and even exceed, that 300 mile mark.
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https://www.slashgear.com/2016-mirai-sets-a-312-mile-record-for-zero-emission-cars-01391317/