#GMC Sierra HD

Commercial vehicle during an IIHS front crash prevention test

Trucks

Silverado 3500HD, Sierra 3500 and F-350 Earn ‘Poor’ in First IIHS Crash-Avoidance Tests

Only the Ram 3500 avoided the bottom rating against other vehicles, and it managed just marginal. Among seven cargo vans, the Mercedes Sprinter was the lone good performer.

Tom Beckett·Oct 10, 3:26 PM

Chevrolet Silverado 2500 HD ZR2 kicking up dirt on a gravel trail

Trucks

GM's New 8.3L Duramax Beats Ford and Ram on Paper — Here's What Else Changes

The 2027 Silverado HD and Sierra HD get 555 hp and 1,230 lb-ft, edging Ford's Power Stroke. Electric steering and brake boost may matter more to owners.

James Whitfield·Sep 25, 3:24 AM

Mongoose staring into the camera in GM's 8.3L Duramax teaser video

New Cars

GM's New 8.3L Duramax Has a Name: Mongoose — and a Target: Ford

The teaser confirms years of rumors — and openly mocks the "Scorpion" codename of Ford's 6.7-liter Power Stroke. Specs are still under wraps. Tags: GM, Chevrolet Silverado HD, GMC Sierra HD, Duramax, diesel, pickup truck

Tom Beckett·Sep 22, 12:05 PM