A recent viral video shows a GMC Savana driver making an illegal pass around a school bus before losing control on the muddy shoulder and running off the road.

The New Flyer transit buses have a bidiesel-fueled hybrid powertrain manufactured by GM Allison Transmission. Vehicle exhaust emissions are a major air pollution issue in mountain valley towns ...

17,000 buses operate in Shanghai, each traveling 155 miles per day. GM thinks they can achieve a 30-percent improvement in fuel economy with their hybrid technology. Let me be the first to say ...