Tesla's 'Navigate on Autopilot' Changes Lanes--With the Human's Help

If you've been driving your Tesla in the past week, you're likely enjoying the major upgrade Elon Musk's automaker just issued with a free, over-the-air software update. And if you believe the blog post trumpeting the advance, you've taken a major step towards chillaxing on the highway while the car handles the traffic for you. By accepting this download, owners give their cars the ability to "Navigate on Autopilot," which Tesla says "guides a car from a highway's on-ramp to off-ramp, including suggesting and making lane changes, navigating highway interchanges, and taking exits." It comes with a mass of caveats though, not least that the driver still has to stay in control, and confirm every single move the computer comes up with. No surprise, owners are already debating how much better their cars really are now.