GREEN STICKERS. Limit is 40,000, and 28,739 have been issued. Vehicles that meet California’s partial zero-emission vehicle requirements include Ford’s C-Max Energi, Toyota’s plug-in Prius ...

You've heard by now that I'm buying a 2011 Nissan Leaf. In case you're wondering, it's a Cayenne Red SV, which I'm hoping implies some hyper-real blend of Porsche and Lamborghini performance.

The sticker depicts a stylized version of a leaf from the Ohio buckeye tree, a nod to the state tree of Ohio. It's a small green leaf with a white outline inside a circular black sticker.

California plug-in car drivers with white or green carpool stickers can no longer use carpool lanes starting Tuesday. The state passed a new program last March that invalidates both the white ...