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.

For most of its 777X testing, Boeing has operated four prototypes. These aircraft are WH001 (N779XW), WH002 (N779XX), WH003 (N77XY) and WH004 (N779XZ). However, in August 2025, a fifth test aircraft ...

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 ...

This video captures exciting prototype sightings at the Nürburgring Nordschleife, including the BMW M3 Touring, Aston Martin ...

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 ...

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 ability to quickly get Soldiers needed capabilities is critical. New AI-enabled tools the Army is piloting aim to speed up the acquisition process.

The two new Kaan airframes are scheduled to begin testing in 2026, while Turkey is also developing its own engine to replace U.S.-made powerplants used by the prototypes. The second and third ...

Rivian R2 prototypes have now been driven by a select few in digital media, and we have learned some new (potential) performance specs.

Regent Craft received U.S. Coast Guard approval to test its Viceroy seaglider prototype. The 12-passenger seaglider is designed for 180-mile flights at 180 mph, combining aircraft speed with boat ...

"Manufacturers never test their prototypes in actual winter," claims one skeptical observer as they dissect the Rivian R2's "nightmare" rear wiper layout.