A sneak peek at NBCSN's documentary "Haas F1: America's Return to the Grid." With only 4 days before the car needs to run on track for the first time in Barcelona, the team has yet to fire up the VF-16's engine.

They gather at the Dallara factory in Varano de'Meligari, Italy in hopes of hearing the engine come to life, but with such a complicated power unit, there are no guarantees and time is running out.