I have seen posts here and elsewhere about the mileage hit with the v and how some people might not be willing to accept that hit. I just got back from a round trip from Wilmington NC to Charlotte NC in my v level 3. It is a little over 4 hours each way of mostly highway driving. I averaged over 50mpg on the the trip which is consistent with the over 52mpg that I had been averaging around the Wilmington area. I previously had a 2005 Prius that would do about the same. As long as you can keep the v in the ECO range and utilize the EV mode when it is available, I don't see where there is any significant drop in mpg. The only technique that I use with both cars is coasting where appropriate. The v allows me to have a mini-mini van and average 50mpg.