hybrid vehicles

Toyota has sold 3 million hybrid vehicles since launching the Prius in 1997.

Toyota Motor (TM) is already the largest maker of hybrid vehicles, offering seven different models in the U.S. market. But the automaker's plans call for it introduce six new models by the end of 2012 and to offer two plug-in hybrid vehicles, including a version of its popular Prius to be marketed...

Nissan aims to nealy double the mileage with a hybrid version of its Infiniti M sedan compared with gasoline engine version, Reuters reported. The car is Nissan's first hybrid developed in-house.

What are car makers tooting their horns about? All the earth-friendlier engines at the Detroit auto show. Hyundai's plug-in Blue Will concept car and Nissan's all-electric Leaf are just a couple of the new models. Companies are keen to show they are serious about raising gas mileage and reducing emissions.