Tesla to offer free Autopilot month-long trial for current owners

Owners of Tesla Model S and Model X electric vehicles who didn't pony up for the automaker's Autopilot system can test it out for a month for free. If they like it, they can add the software—the hardware is already there—for $3,000. The prize for declining it initially? Buyers get to pay $500 more than they would have for a Model S or... Tesla to offer free Autopilot month-long trial for current owners