I have driven 2001 Prius up and down lots of NM, CA, and AZ mtns, but not to Placitas in particular. Can't think of a small car I would rather put to the test. But then again, I drank the koolaid a long time ago! (and yet, still live...).

In order to force Prius into "plan B", you must run it up a long grade steeper than 10%. 1500 feet in 7 miles is 4%. Piece of cake. You uphill mpg will be better below 50 miles per hour, if that can be arranged. Downhill, whatever the tires and guard rails will allow. Whee! A 1500 foot descent is enough that you should learn what "B gear" is all about; it is widely discussed here and in other internet chatgroups.

The new model Prius is a bit more clever in the design of the electrical motors (and a few other things), so I would expect a bit more of it. Not that I am contemplating a trade...

For any hybrids etc. that you may consider buying, a comprehensive test drive over varying roads is the only way you can know for sure. On your first hybrid drive, do not be dismayed at more engine noise while climbing. It's just what they do.

Years ago, I found Beaver Toyota in Santa Fe to be "not among the best" in their service dept. If you use them, I hope they have gotten better...

DAS