The hydrogen EV is a Mercedes F Cell which is a small crossover with CD of 0.24. All these figures are approximations. In an EV using the air conditioner or heater will subtract 0.5 to 1 mpg off these numbers. Hills also affect MPG +/- several units. So essentially the hydrogen fuel cell has MPGe like a 1 liter three cylinder car. In terms of well-to-wheel "cleanliness" it is rated by cleanercars.org as "42%" which is no better than a Mercedes or BMW diesel. The Prius and Insight were rated 54% and 58% respectively. FC == fuel cell PR == prius G3 and HI = Honda Insight G1 (all driven by me) MPGe FC HI PR 45 45 35 at constant speed of 80 miles/hour 58 58 48 at constant speed of 70 miles/hour 70 70 60 at constant speed of 60 miles/hour 82 82 66 at constant speed of 50 miles/hour 95 95 75 at constant speed of 40 miles/hour 110 110 85 at constant speed of 30 miles/hour
