The automaker's Silicon Valley coming out party included a slew of new offerings related to carsharing, 3-D printing and self-driving cars.

New proposed EPA rules drastically would cut carbon emissions and oil consumption by extra large vehicles.

Despite buy-in from "Prius Patriots," the hybrid is suffering from slow sales and even slurs including "un-American." What can Toyota do?

The automaker's battery innovations already are pushing energy storage affordability far beyond market projections.

The sharing economy and radical changes in the way we buy energy are breaking the stranglehold on private infrastructure and opening new possibilities for urban sustainability.

Despite increasing encouragement from automakers and governments, electric vehicle (EV) adoption is still hampered by several hard-to-crack economic dynamics.

As world leaders look to mitigate the effects of climate change, how can cities reduce carbon emissions by improving transportation?

Can electric vehicles, self-driving cars and connected vehicles play nice with existing transportation systems?