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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Caterpillar has launched a new Stage V dozer as part of its D7 equipment range for the European, Australian and New Zealand markets. The D7 is the successor to the company’s D7E model. It is fitted ...

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 ...

A two-year study of hybrid construction vehicles reveals that while the machines offer significant savings in fuel consumption and greenhouse-gas emissions, they produce higher levels of smog-forming ...