Just thought I'd chime in here to say that my Prius performed excellently on a (very) recent trip from MA to FL. The average for the trip was about 45MPG (being unscientific here, but it was 45.x, 45.x, and 45.x for the three fillups). I have a TON of bugs on my front bumper. I'm going to need to do some SERIOUS cleaning this weekend.
We had the same problem with BUGs on a trip to and from Tucson to Souther Cal. We spent the money before hand and got an expensive detailing done, and the bugs cleaned off easily. WAX! Cathy
Shouldn't be many bugs on mine. Bought a lovely frontend mask for it. Now all I need is my car!! (2 months to go, I hope!)