Wayne Cunningham reviews cars and writes about automotive technology for CNET's Roadshow. Prior to the automotive beat, he covered spyware, Web building technologies, and computer hardware. He began ...

Caterpillar’s new D7E bulldozer is the world’s first hybrid—uh, electric . . . uh, wait, what is it again? “We consider this a diesel-electric hybrid powertrain,” says senior project engineer Keith ...

One of the most interesting launches at the ConExpo-Con/Agg exhibition in Las Vegas last month was Caterpillar's first ever electric drive dozer. The D7E model marks the company's introduction into a ...

At the D7E's official introduction event in Peoria, Cat representatives spoke for the first time of the electrically driven bulldozer as a “hybrid-electric” tractor, and candidly discussed the ...