It looks like Tesla has run into a snag in the production of the new Model 3. Musk had initially predicted the Model 3 production line would be producing 5K cars per week by the end of 2017. He was wrong. Now it's going to be March 2018. Over 400K customers paid $1000 to go on a waiting list for the car and I'm sure they aren't happy about this delay. Supposedly an outside supplier for part of the battery assembly dropped the ball. Anyway, if you dropped your cash to get a Model 3 you're going to have to wait a bit longer. “They are making some big promises, and they need to show a path to get there,” says R. A. Farrokhnia, a business and engineering professor at Columbia University. The car business is notoriously tough, but building just a few cars, reportedly by hand, is not enough.