GM's mass-market diesel engine has seen many variations, but these three stand out as the best.

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Annabel Schofield revealed she wasn’t “out of the woods” with her cancer battle in a heartbreaking final post. Taking to Instagram on Jan. 20 — a month before her death — she addressed her “dear ...

On Tuesday, March 3, the pit gate will open at 2:00 PM, followed by an Open Practice from 6:00 – 8:00 PM for all competing divisions. A complete program is on the docket each night for the Lucas Oil ...

INDIANAPOLIS (AP) — INDIANAPOLIS (AP) — Allison Transmission Holdings Inc. (ALSN) on Monday reported fourth-quarter net income of $99 million. On a per-share basis, the Indianapolis-based company said ...

Kuch shared the one symbol she associates with her late grandmother that has appeared during milestone moments in her life, including when she knew she was pregnant the second time around Tabitha ...

The Lucas Oil Late Model Dirt Series presented by FloRacing this morning announced its 2026 schedule that features 58 events at 26 tracks across 16 states and new locations for two of the national ...

Allison Holker had to pick up the pieces of her heart when her late husband, Stephen “tWitch” Boss, died by suicide in December 2022 at the age of 40. Though it was a difficult time for her, she found ...

NEW SMYRNA BEACH, Fla. — Jade Avedisian’s No. 24 Mobil 1 Toyota featured some noticeable battle scars at the end of the World Series of Asphalt‘s second Super Late Model feature Saturday evening. The ...

The NASCAR legend believes the young racer will is a driver worth watching as she continues to develop in stock car racing. Jade Avedisian won her first Super Late Model race at New Smyrna's World ...

As GM Authority recently covered, General Motors will once again leverage the Allison name for its heavy-duty pickups, slapping an Allison badge on new units of the Chevy Silverado HD and GMC Sierra ...

In the fall of 2025, General Motors was about to do something drastic. It was planning to remove the Allison Transmission badge from its heavy-duty trucks. We’re not just talking about the ones it was ...