What does Tesla have up its sleeve? The automaker is planning to unveil a mysterious new product on Monday, and speculation so far ranges from the finalized Model 3 to a major Autopilot update. Meanwhile, the Toyota Prius Prime received a spectacular 133 MPGe rating, making it the most efficient electrified vehicle you can buy in the US. A new European law could require all new homes to install electric vehicle chargers. And Vello launched the world's first folding electric bike that can power itself.