The GMC Sierra HD has been updated for 2024, and among the updates are the new off-road-ready AT4X and AT4X AEV Edition. They come with upgrades that include a 1.5-inch suspension lift, Multimatic's DSSV spool-valve dampers, and 35-inch tires.

Bentley is working on an update for the Continental GT, and a prototype for the convertible has been spotted. The updated range will no longer offer a W-12 engine, and may end up with hybrid powertains only.

A one-off 1970 Plymouth Barracuda built for the Rapid Transit System Caravan that toured auto shows and appeared at dealerships in the early 1970s is about to come up for auction. The car has been in storage for five decades and has less than a thousand miles on the clock.

You'll find these stories and more in today's car news, right here at Motor Authority.

2024 GMC Sierra HD spawns AT4X and AT4X AEV off-road editions

2025 Bentley Continental GT Convertible spy shots

1970 Plymouth Cuda 440 Rapid Transit reappears, heads to auction

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Perez leads Red Bull one-two at 2023 F1 Azerbaijan Grand Prix

Review: 2023 Toyota Prius looks like an electric sequel but fits the hybrid franchise

Aston Martin offers new engines for its old cars

Honda Accord vs. Toyota Camry: Compare Sedans

Lia Block to drive Ken Block's Hoonipigasus at Pikes Peak

Daimler plans $650M US charging and hydrogen network for big rigs