With its prototype series of Astro concept cars, GM showed drivers a possible vision of a future that never fully arrived.

Chevy put a lot of work and some fascinating ... And we can give you an answer because we were given a chance to drive a prototype back-to-back with a current V6 model for comparison.

Just announced ahead of the show's opening, Chevrolet is rolling in to Vegas with the Silverado Cheyenne Concept you see here. It's based, of course, on the new Silverado, in regular cab ...

At one point, Chevrolet was shaping up to be the first American automaker to rely on a Wankel engine in a concept model that never saw production. Your changes have been saved Email is sent Email ...

Felix Wankel, a German engineer, created the Wankel engine. Compared to the standard engine configuration, the Wankel engine was typically lighter and had a smaller form factor. Because the rotors ...

Here we go then, Ford ’s very first fully electric NASCAR prototype. It’s a Mustang Mach-E that looks like a good bit of fun.

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In the 2000 Chevy Camaro SLP Ultra-Z prototype seen here, these efforts are manifested most especially in the engine compartment, which as HOT ROD’s original story from November 2003 showed ...

Chevrolet rolled out a third model as well – the Z-Spec. While only a concept, it does give a glimpse at a possible in-house tuning arm for the bowtie brand’s small car line. While GM does ...