Toyota plans hybrid that runs on batteries

[hhcchen]

Toyota plans hybrid that runs on batteries
By Ken Thomas, Associated Press
WASHINGTON — Toyota sees a future in plugging in vehicles — instead of simply pulling in for gas. Already a leader in the hybrid market with its Prius sedan, Toyota Motors plans to develop a hybrid vehicle that will run locally on batteries charged by a typical 120-volt outlet before switching over to a gasoline engine for longer hauls.
http://www.usatoday.com/tech/product...-hybrids_x.htm

sounds like a good idea...
you use less foreign oil... but need more electricity from local energy resources...
so you can run solely on battery...
i am wondering... if you run out of battery... or let's say your battery is dead during a road trip...
can those hybrids run solely on gas engine...???