BERKELEY, Calif.—Tesla Inc said on Tuesday it will drop a radar sensor in favour of a camera-focused Autopilot system for its Model 3 and Model Y vehicles in North America starting this month. The move came amid growing scrutiny by regulators and media about the safety of what Tesla dubs “Autopilot” and “Full Self-Driving (FSD)” features, following a series of crashes. “Pure vision Autopilot is now rolling out in North America,” CEO Elon Musk said in a Tweet. He said it plans to release an improved “FSD beta V9.0” based on the pure vision system about three weeks later. “FSD subscription will be enabled around the same time,” he said. In October, Tesla rolled out the test version of its new FSD system to a limited number of people, enabling cars to navigate on city streets in semi-autonomous mode as well as highways. A wider launch has been delayed. While …