My 07 Maxima has more luxury and power than I could hope for, but in this new gas environment the difference in costs between the Maxima and my wife's 2008 Honda Fit is quite staggering. But the expense has changed me. Specifically, I don't let my aggressive side take over anymore. Driving in a more relaxed, passive manner doesn't feed my testosterone and makes me more agreeable. Also, my city gas mileage goes up from 15 MPG to 18 MPG--that's a 20%, no small change now that gas is approaching $5 a gallon.
If I really slow down, I should be able to improve my gas mileage by 30%, according Edmunds Gas Saving Tips.
So for saving gas, I'm a more relaxed driver is more congenial and more safe. Who knows? This gas inflation may--by virtue of slowing me down--save my life.