Before you nay-sayers, uh, nay say on the whole idea of running the A/C via solar panels (i.e. what if it's hot and cloudy?), we say, "Rock on, Toyota!"
Great ideas often start small and this is the kind of movement forward we need. Yes, it's a start. Now let's see GM one-up Toyota.
engadget: Prius to go (partially) solar