My aunt and uncle bought a brand new Toyota Prius a few months ago and I had the opportunity to drive it for a long distance trip a few weeks ago too!
Heres what I thought.
Surprisingly comfortable for a small car!
I am a big person (6 foot 3 inch's and 250 pounds) and I liked the feel of the seats even after 11 hours on the road.
However for me there was no head room except for the added clearance given from the sun roof recess. Its a tight fit as well. Granted its comfortable but very tight quarters. Especially with four people and luggage as well.
Most people over about 5 foot 8 inches tall will find it a bit of a nuisance to get in and out of though. You have to bend down rather far to keep from hitting your head when getting in and the low ground and head clearance plus tight quarters makes it somewhat harder for older or taller people with limited flexibility, strength or of larger builds to get in and out of.
Its got surprisingly good low speed power and rides like a large full sized luxury car with a pleasantly sporty feel. It has a fairly heavy feel road wise. But it does still seem to get pushed around by wind like any smaller vehicle does though.
Unfortunately at higher road speeds it really has to wind up that little engine to get any power out of it. The fuel economy meter nearly touches zero at that point.
The toys and gadgets are well thought out and reasonably user friendly. It has a rather basic but well designed interior as well. The main touch screen control system is a bit of a challenge to use and navigate while driving though. The buttons and menus seem a bit out of order and small.
My aunt and uncle say it does in fact have outstanding in town fuel economy. (30 -32 on average as they have noted)
However its actual as driven mileage at highway and interstate speeds quickly drops off. After 10 hours at interstate speeds the actual fuel mileage was around 34 MPG.
Sorry but my 1994 Mercury Grand Marquis pulls a consistent 28 -32 on the same trip even loaded down with four people and luggage.
Sorry but for the price and what I do I wouldn't buy one.
But if I was a city person who needed to drive a reasonable distance everyday in stop and go traffic I would definitely recommend it!