Toyota continues to push what its Prius can do

The 2010 Toyota Prius, while in EV Drive, will let you run on battery alone for about a mile, conditions permitting.

One of the coolest new features is the optional solar panels in the moon roof for generating power for circulating air and keeping the interior from getting too hot. There's also a battery powered remote-controlled A/C system that lets you set the temperature ahead of time.