What We Know and Predict About the New Colorado ZR2 Bison

June 26th, 2023 by

While presenting the new Colorado ZR2 models to automotive journalists, on-site in camouflage for an obviously-staged tease, was a model that will clearly be the next ZR2 Bison. While the previous Colorado ZR2 Bison was certainly quite capable and popular at the Dieffenbach GM Superstore, it was essentially a ZR2 with a key assortment of…

2024 Sierra 1500 AT4X Will Have Duramax Turbo-Diesel as Standard Engine

June 26th, 2023 by

GMC announces a big change for the off-road-focused Sierra 1500 AT4X. All 2024 AT4X models will have the powerful second-generation 3.0-liter Duramax Turbo-Diesel  inline-6 as its standard engine. Replacing the current 6.2-liter EcoTec3 V8, the Duramax produces 305 horsepower, with maximum torque of 495 lb-ft. The 10-speed automatic transmission will remain as the standard transmission….

Two Suspected Ultra-Performance Corvettes Caught Testing

June 26th, 2023 by

When the 2020 C8 mid-engine Corvette first made its rounds to the press, road testers were amazed by its power, handling, and overall sophistication. No longer was any favorable comparison to European supercars followed by a “Yes, but…” by which there would be some discussion about balance, finesse, interior quality, or some such excuse to…

Heavy Duty Gets Extreme with New AEV Edition GMC Sierra

June 19th, 2023 by
GMC Sierra AEV Edition in Front of Mountains

It’s the best of both worlds: the first-ever GMC Sierra AT4X AEV Edition is on its way to Rockingham! GMC recently announced their collaboration with American Expedition Vehicles to release a special-edition Sierra truck that combines power, performance, and technology in one package. The all-new AEV Edition combines the heavy-duty towing capabilities of the Sierra…

Why the new Corvette is a hybrid and not an all-electric car

March 14th, 2023 by
Blue Chevy Corvette E-Ray

Introducing a new kind of Chevrolet Corvette General Motors recently revealed the 2024 Chevrolet Corvette E-Ray. The E-Ray is the first Corvette rendition to be electrified or hybrid. This came as a surprise to many since GM had recently set its sights on shifting towards a lineup of all-electric vehicles. So why would GM create…

Heavy-Duty Changes for the 2024 Silverado HD

February 27th, 2023 by
2024 chevrolet silverado towing a boat

The heavily changed 2024 Chevrolet Silverado HD made its public debut at the State Fair of Texas September 2022 and more information has been coming in since. Production is anticipated to begin the first half of 2023, with anticipated transit to Dieffenbach Superstore inventory around summer 2023. Delivered with the presence of major changes to…


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