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.

Vertical Aerospace has commenced ground testing a new, advanced full-scale prototype of its VX4 eVTOL air taxi, following a crash involving its initial prototype last year. The new VX4 prototype ...

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, ...

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 ...

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 ...

Dodge parent Stellantis is exploring the viability of semi-solid-state batteries with real-world testing. The test mule: A ...