Opinions expressed by Entrepreneur contributors are their own. Amazon Fire Phone, Google Glass, New Coke and Nintendo’s Virtual Boy: What do all these products have in common? They didn’t sell.

Tesla has been spotted testing a Model 3 prototype with what appears to be a new camera setup. Is Tesla preparing a new vision rig for its next vehicles? While most other companies working on ...

How do you close the gap between I wonder and I know? You make a prototype. A prototype is a tool that gives you a chance to investigate your ideas and explore what could, should, or would come next, ...

Radian Aerospace’s subscale prototype for its Radian One space plane sits on a runway in the United Arab Emirates. (Radian Aerospace Photo) Seattle-based Radian Aerospace has finished the first round ...

At the PARI Hypersonics Advanced Manufacturing Technology Center (HAMTC), from left: Nate Humbert, lead additive manufacturing engineer, GE Additive; Will DeVerter, aeronautics and astronautics ...

A new Audi prototype is spotted during testing at the Nürburgring, hinting at an upcoming performance model. The camouflaged ...

A late-night testing session in Los Angeles turned into a roadside rescue for the highly anticipated Rivian R2 prototype.

To show that love of the ultimate driving machine is forever and not relegated to selling merchandise or holiday cards, BMW has unveiled something it calls the Heart of Joy—a little black box full of ...

U.K.-based electric vertical takeoff and landing (eVTOL) air taxi manufacturer Vertical Aerospace is back to testing aircraft. The manufacturer has begun ground testing a new, more advanced full-scale ...