FEH owner here who just got a job that requires lots of interstate travel.

It is not uncommon for me to have to drive 800 miles in one day, and I'd like to get that done in a reasonable amount of time. ( fast speed )

At 65 miles per hour I get mid-30's most of the time in my FEH. Up to 40 MPG if I can catch a tail wind. I'd love to cover miles quicker, but MPG suffers dramatically with speed.

So how does the Prius handle at high highway speeds? 65? 70? 75 miles per hour?

So how does the Prius do MPG wise at 65? 70? 75 miles per hour?

How does the Prius do with 10% ethanol in the gas? 20%? 30%?
( I do most of my travel in corn belt states )

I would like something that gets 40's or 50's for MPG at fast speeds, since now, I will cover about 4000 miles per month, almost all of it, over interstates with 65, 70, or 75 miles per hour speed limits.

I love hybrid cars, but am not very familiar with others besides Ford.
Thanks in Advance!
-John

BTW I'm open to models other than Pruis!