Apparently, public pressure works... to a degree. Tesla has reintroduced automatic emergency braking to the Model S and Model X through an update after their continued omission led Consumer Reports to lower its ratings for the electric cars. It's a tentative step, mind you. The feature currently only works at speeds up to 28MPH, so this won't save you if someone abruptly slows down on the highway. Higher speeds will come in stages, Tesla says. It's not clear just when you'll see the 90MPH braking that came with models released before October 2016.