Moving on to Level 4—this is where the car can drive itself almost all the time but still has some limitations. For example, a Level 4 car can navigate a trip through city streets, stop at traffic lights, and avoid pedestrians without human input. Picture this: You hop into a robo-taxi, tell it where to go, and it handles the rest. You can catch up on emails, read a book, or even take a nap. Sounds like sci-fi, right? Well, some places are already testing this! But it can’t handle some situations, like severe weather or driving in areas where its mapping data is incomplete. If the car encounters one of these situations, it will notify you to take control. Some self-driving taxis you might hear about are at this level.