I am certainly no expert in these matters, but what I have been daydreaming about for, say a 2012 or 2015 or thereabouts Prius is a PHEV with a battery pack that will last for maybe 60-80 miles and can power the vehicle up to somewhere around 65 mph, a plug so you can plug it in to the grid at night and solar panels to top off the batteries while driving or while parked. If the car is parked and the interior exceeds a certain preset temperature, the A/C will be powered by the solar panels to cool down the interior. If the batteries are full and the interior does not need any cooling, the solar panels will become inactive and not charge anything. If while driving the batteries get depleted to a certain point, for example on a long distance trip on the highway, the car will work like a regular hybrid like the current Prius. Does this sound feasible or is this just wishful thinking?