Lee Iacocca, 80-year-old Detroit car guy, is not too old to see that there is a substitute for cubes.
A story in the New York Times quotes the ex Chrysler chairman as saying that General Motors has wasted its money on Hummers and should have built hybrids instead - even half-baked hybrids:
If it delivers on half the promise, do it. Because you can't let Toyota rule the roost here continually. I don't see anything on the horizon short term that can improve fuel economy any faster than a hybrid.