GM has crafted some radically cool concept cars that should have made it to production, but unfortunately fell short.

The list of cool concept cars that either never made production, or somehow even more disappointing, made it onto the ro ...

Cadillac's newest prototype is throwing down the gauntlet. Can it challenge the dominance of Rolls-Royce in the ultra-luxury ...

So Earl asked Buick chief engineer Charles Chayne to start work on two two-seater convertible concept cars, initially called XP-8 and XP-9. XP-9 would become the XP300 and XP-8 the Le Sabre.

Have you ever searched for cabriolets and was given a list of convertibles? Here's exactly what the word means and why one ...

This concept car is luxury on top of luxury on top of ... end that Mercedes deemed its "boat tail," this battery-powered convertible coupe is what we can only dream the future of electric vehicles ...

Buick’s new Avista concept is great looking, and it looks even better without a fixed roof. These renderings of the Avista Convertible show off what the car would look like if it lost its roof.

Indeed, debuting a Camaro Convertible Concept in the intervening years before the actual coupe goes on sale will keep the car's buzz at a fevered pitch until production starts sometime in 2008 or ...

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The Lexus LC Convertible Concept has been presented ahead of the ... He's a die-hard motorsports fan with a passion for performance cars of all sorts.

Toyota says no firm decision has been made on a production future for the Solara convertible but the coupe will definitely be ...

One of the most talked about vehicles at the Show, the Evoque Convertible Concept is the world's first ... It is our most awarded car ever with over 200 global accolades to date and sales last ...