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 ...

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 ...

The Cat D7E features a diesel-electric drive system that boosts productivity and efficiency while lowering operating costs and dramatically reducing fuel consumption. D7E dozers are working in many ...

WHAT IS IT? A diesel-electric bulldozer. HOW MUCH? Base price is $560,000; as tested, $600,000. Loading up with options like a heated seat, rear camera, rock guards, GPS tracking device and autopilot ...

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 ...

A continuously variable electric motor drives each track 60% fewer moving parts in the drivetrain Center-post cab provides more all-around visibility and wider sight lines to the blade Single larger ...

The world’s first hybrid dozer will cost about $100,000 more, or 20%, than a comparable non-hybrid of the same size but will do more work and pay for itself in about two and a half years, say ...

D6T, D7E and D8T dozers are not only powered by Cat ACERT engines designed to meet Tier 4-I emissions standards, but also have new features. Net horsepower ratings range from 205 to 310; and engines ...

Caterpillar Inc. is getting into the hybrid vehicle business. Except these won't be vehicles you'll see on the highway. The company this week officially launched its line of diesel-electric hybrid ...

The world's first diesel-electric hybrid bulldozer will carry a price tag that is about $100,000 more, or 20% higher, than a comparable non-hybrid machine. But will pay for itself in about ...

Since its introduction, the Cat ® D7E Track-Type Tractor, equipped with a revolutionary diesel-electric power train, has proved its ability to deliver reliable, low-cost production in a range of ...