Everything we learned from the Tesla Semi and Roadster event

Doubts that Elon Musk would be unable to put on a raucous reveal party were put to rest late Thursday night. Amid Tesla’s “production hell” this fall, the automaker delivered two beacons of hope for the California-based company’s future.
The Tesla Semi drew excitement from the crowd at the Hawthorne, California facility, as people eagerly waited for Musk to emerge from the big truck. But the surprise showing of the second-generation Tesla Roadster caused explosive cheers