Quote:
Originally Posted by NeilBlanchard
YSomeone on another forum found an interview where they explained the "5X" number: in a series hybrid vehicle, this engine is 5X more efficient than an SUV, and it is 3.5X more efficient that a current parallel hybrid. Only a bit more helpful, but still pretty vague...
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I'd think a lot of that has to be a comparison against "normal" IC engine use, where it's operating far from the max BSFC. Now if you put the engine in a Volt-like hybrid where it's always running at max efficiency, the numbers would be different.
What puzzled me most was the claimed reduction in CO2: that's a fixed relation with fuel burn, so the number should be exactly the same as efficiency increase.