Unveiling of Nikola Two, Nikola Tre

The Nikola Two, a hydrogen fuel cell Class 8 Truck for long-range driving with an optimum powertrain layout, makes its grand entrance. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

A side view of the Nikola Two as CEO Trevor Milton delivers his presentation. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

Nikola CEO Trevor Milton (left) greets Arizona Gov. Doug Ducey. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

Jesse Schneider, Nikola's executive vice president, hydrogen and fuel cell technology, discusses product innovation. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

Nikola CEO Trevor Milton (left) welcomes Nikola President Mark Russell. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

Nikola CEO Trevor Milton enjoys a "toast" with Ingrid De Ryck, vice president of procurement and sustainability at Anheiser-Busch. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

The Nikola Tre, a hydrogen fuel cell truck for the European market, makes its debut. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)

Nikola's "Storm Trooper" truck makes a grand finale appearance. Nikola Motor Company showcased five zero-emission products at its Nikola World event in Scottsdale, Ariz., April 16, 2019. (Nikola Motor Company/YouTube)