Fantastic! She performed admirably, returning an mpg of 42+ at 70+ typically in below 30F temperatures, often below 15F. I did full block once the temperature went below 32F. And did some Prius camping too! Pulled into a rest area and let her "idle" with the heat on. No problems at all. Oh, and I hit 100mph+ a few times on I-40. Not scary at all. So in a sidetrip, I went to fetch 8 wheels from a friend in Ft. Collins. "What are you driving up here?" "A Prius." "Will it fit?!" "We'll find out." Not only did 8 16x7 wheels fit (in box), I could leave the larger half of the 60/40 rear seat up! And I could clearly look out the top portion of the rear window. And all of my luggage fit in just fine as well (admittedly, I pack light). I'm really amazed how practical she is!
Sorry. Did not take a picture before the wheels went up the crawlspace in the garage. Think of it like this: 4 wheels standing up, parallel to the rear Prius wheels. Three more stacked horizontally on the folded seat. Then one more on the back, lined up with the tailgate, kind of like the old Lincoln Continental Mark IVs, only on the inside.