Be aware that the 845 miles was achieved by a person who specializes in driving cars efficiently. It is not reasonable to expect a typical driver to attain this

Be aware that the 845 miles was achieved by a person who specializes in driving cars efficiently. It is not reasonable to expect a typical driver to attain this distance on one tank of hydrogen. The EPA estimate for this vehicle is about 420 miles and may decrease with weather and road conditions as well as fuel cell and battery age.