“It is an option. They have been using natural gas in cars for thirty years. During the Carter administration, most of the cabs in Los Angeles were all powered by natural gas. It’s not rocket science and it’s not new. It takes up a lot of trunk space, though.”
Agree. But relative to all the crap in hybrids, CNG is pretty darn nice. I maintain my cars, but if an inverter (for example) dies, I’m stuck with a multi-thousand dollar new part...and then something else likewise might die.