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.

Hermeus has completed testing of its first fully-integrated vehicle, Quarterhorse Mk 0. This non-flying prototype acted as a ‘dynamic iron bird’ for the company by validating all major aircraft ...

World Cup Cross-Country racing has kicked off back in continental Europe, and with it comes a new batch of lightweight mountain bike prototypes engineered to go fast, and what better way to make your ...

The vehicles vying to replace the Marine Corps' aging light armored vehicle fleet swam for the first time earlier this year.

If you’ve been scrolling through the grainy "spy shot" corners of the internet or hawk-eyeing the starting grids of the early ...

Volta Trucks will test all electro-mechanical and thermal properties of its prototype Volta Zero. Volta Trucks has started engineering evaluation and development testing of the first prototype Volta ...

Mercedes-Benz is testing prototypes of its next-generation electric vans ahead of their scheduled debut in 2026. Unlike the current eSprinter and other smaller electric models sold in Europe that are ...

Textron has submitted its Cottonmouth prototype as its offering to the Marine Corps' Advanced Reconnaissance Vehicle competition. (Photo courtesy of Textron) The Marine Corps has kicked off its ...

Apple uses a variety of test devices and prototypes when it is considering new iPhone features, and one such test device was recently discovered by AppleDemoYT, who shared a video today. This rare ...

Tesla is nearing the production of the refreshed Model 3, known internally as "Project Highland." Prototypes of the new models have been buzzing around for some time, but none was as intriguing as ...