What would happen if everyone owned a hybrid vehicle?

Lets say that a majority of people owned a hybrid vehicle…which is basically only produced by foreign Honda and Toyota i believe. What would this do economically? How would this effect gas prices? the environment? Would Ford and Chevy continue to produce more gas guzzlers and just reduce the prices on them? Or would they [...]

Do you save more gas in a higher gear or a lower gear?

I always hear people claim that folks with manual transmissions on their cars save more gas than drivers with automatic cars. I have an old fashioned manual gearbox. Not this new stuff where there is no clutch. I have a foot-operated manual clutch on my car with a stock-standard four-on-the-floor stick shift gear change lever. [...]