front crash prevention

Six months ago, Tesla abruptly announced that it had upgraded its electric cars with a new package of sensors for the Autopilot driver-assist system, known as "Hardware 2." The equipment was being fitted to all new Tesla Model S and Model X electric cars then in production—but there was a catch. Initially, those cars would have fewer features than earlier models with the hardware suite built into all Teslas since late 2015, retroactively known as "Hardware 1." DON'T MISS: Tesla Model S battery life: what the data show so far What followed was six months of increasing irritation on the...