The dashboard looks primitive, especially next to the Ford hybrid dash that grows leaves when you hypermill. But it's rated at 50mpg under mixed driving, and is supposed to be faster than the old.

As previously mentioned, the car also has a solar panel used in the roof used to ventilate the car while parked, reducing AC usage once in motion, and LED taillights and daytime running lights.

The fore mentioned Ford dash, here:

Full details of the new Prius are over at Jalopnik.
[NetCarShow via Jalopnik]