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.

A prototype is an early, trial version of a product/service made to test and improve ideas before the final version is created. Prototype is a preliminary, often incomplete, version of a product, ...

The answer to these questions in order is no, kind of, and yes. The Lucid Gravity is the startup automaker’s upcoming crossover SUV, but in many ways it redefines the genre in terms of packaging, ...

Renowned eVTOL company Joby Aviation is moving toward production prototype development and striving for flight certification for its new flying vehicles after achieving a milestone in its testing. The ...