The above was the most expensive fillup we had in the course of our 2,650-mile road trip to Seattle and back. Granted, it was our biggest fillup as we'd always have to stop for food or a bathroom break and were only able to get it down to a little less than half a tank before we allowed ourselves to stop. But it made us glad that we didn't have to pay for the gas ourselves. This one fillup is more than the cost of one-way airfare to Seattle from L.A.! (Virgin America $79).
We had 10 fillups during our trip and burned through 146.9 gallons of premium. Our average fuel economy was 18 mpg; most of that was highway driving with some twisty roads. Best mpg: 19.7 (from biggest fillup). Worst mpg: 15.1 (first fillup).
Caroline Pardilla, Deputy Managing Editor

bal169 says:
05:39 PM, 07/12/08
Sheesh, and folks around here complain about paying $3.79 per gallon.
carmizvi says:
07:07 PM, 07/12/08
Not bad for a supercar! Doesn't mean it makes any rational sense when compared to, say, a Honda Fit on the same trip. But these cars aren't about rationality, anyway.