Since moving from Spokane to the West side of Washington State in 1992, I've done the 280 mile drive many, many times. I used to, uh, push the speed limit and could often do the drive, door-to-door, in about 3:45. Over the last few years, a few things have happened. First, I've gotten a little older, and a little more risk-averse. Second, I've gotten back into bike racing. And third, I've gotten more concerned with my energy usage. My old driving pattern was to stick it just under 80 and cruise across the state. In my Audi, this...