 The Model X has standard a collision avoidance system that uses radar-based autonomous emergency braking (AEB) and side-directed ultrasound detection that steers the car away from threats.Tesla uses a wide-band radar system to help prevent the falcon wing doors from hitting nearby objects when opening or closing.The Model X has double-hinged falcon wing doors which open upwards, allowing the leading edge of the door to remain tucked close to the body, unlike traditional gull-wing doors.