Tesla pulls useless 'Full Self-Driving' add-on from its cars

For years, Elon Musk has been touting the promise of a self-driving car. Well, it looks like that promise is a little further off than Musk previously thought, if it materializes at all.
On Thursday, Elon Musk unveiled a new “lower cost, mid-range” Tesla Model 3 car coming in at around $45,000. At the same time, one eagle-eyed Twitter user noticed another update over at Tesla: the optional add-on “Full Self-Driving” feature was gone.Also available off menu for a week. Was