Why wouldn't they just deactivate all cylinders together for short bursts of time?
Add a capacitor bank and a generator/motor flywheel IMA style, dump the alternator and starter motor; it would be like a mini hybrid but without the extra weight.
Unlike a normal hybrid it would pulse on and off in quick succession; charging the capacitor banks when running on gas, depleting them when not.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gigameter or 0.13 Megamile.
For confirmation go to people just like you.
For education go to people unlike yourself.
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