Upstart electric carmaker Faraday Future has been testing its "mules" — basically early engineering testbeds — for a year, according to a new post from the secretive company. Mules are typically built to test and refine mechanical and technical systems, and are an important part of new car development. That's especially true for a company like Faraday, which is basically developing its first car from scratch.

Faraday says its test mules have been driving in "the world's most extreme environments," from hot deserts to snowy, below-zero roads. The mules, according to Faraday Brakes and Chassis Control engineer Matt Lubbers, have fully functional test systems including the powertrain, suspension, electrical architecture, battery, and control systems. Just about the only thing not present is the exterior look and feel. (Typically test mules are heavily camouflaged.)

Echoing the "we are very fast" mantra laid out during its CES keynote earlier this year, Lubbers mentioned Faraday Future's "lack of red tape" and "effortless communication and workflow" for its rapid development process.

Not much was revealed about the actual car, though we can hear the all-electric vehicle in the teaser video above. The article finished with a pitch for new engineers to apply for jobs with the company. That's one way to find out what Faraday Future is working on, I suppose.

Faraday Future's electric hypercar