FUTURE UNCERTAIN: Faraday Future’s FF 91 is an SUV-shaped supercar with a lot of promises to keep.

Faraday Future unveiled the FF 91, its first production EV, at CES in Las Vegas Tuesday night. Unlike the fantasy racecar at last year’s show, the FF 91 (pronounced “nine-one”) actually moved and drove—drove itself, parked itself, and did 0-60 in 2.39 seconds live onstage (with a driver). Also unlike last year’s car, Faraday has plans for the FF 91, including the production of 300 limited editions in March and mass production sometime in 2018.

What was like last year’s show was the raft of big promises. The FF 91 is “the first of a new species,” said Nick Sampson, senior vice president of R&D and engineering. Sampson and other Faraday Future presenters heralded the FF 91’s unparalleled intelligence, cutting-edge design, fast charging, and pure, raw speed. They even promised a mobility ecosystem where the car would provide connectivity, convenience, and customization to enhance the user’s driving experience.

It’s certainly impressive on video. But as Apple, Google, and even Tesla are learning, mass automobile production is hard.