Everything you need to know about the numbers on the gas pump.

General Motors tackled some of its loftiest engineering challenges during the late-1960s horsepower wars, when its divisions duked it out with larger engines, more trick cylinder heads, more robust ...

There was a lot to love about Sunday's race. But it will forever be overshadowed by the mess caused by the new F1 engines.

EFI, hydraulic lifters, huge parts support—the Sportster Evolution is the sweet spot for low-stress Harley ownership.

Mercedes’ smallest car, the CLA, marks the start of a reboot for the entire Benz lineup. What’s good and what still needs ...

These 10 used SUVs pack engines with proven longevity—some capable of hitting 250,000 miles. Find out which ones made the ...

Whatever your view, to us at least, the Mercedes-Benz S-Class has become one of those icons, one that has come to symbolize ...

James Kelly didn't grow up knowing he wanted to be a writer, but once he fell into the whacky world of automotive journalism, he hasn't wanted to leave. In college, he found ways to make every paper ...

Welcome to Edition 9.11 of the Rocket Report! The most interesting story of the week, in our view, is a deep dive by Stephen Clark, linked below, into the dwindling fortunes of United Launch Alliance.

GM Authority spy photographers have once again caught some curious Chevy Silverado HD prototypes testing out in the wild, raising one very important question – just what is General Motors testing here ...

The U.S. Air Force’s future B-52J is moving closer to flight testing with its new Rolls-Royce F130 engines, the company said during AFA National, advancing a propulsion upgrade critical to keeping the ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...