According to Sawyer Merritt on Twitter, Tesla is rolling out a new 'Hey, Tesla' wake word feature in China, enhanced by spatial awareness capabilities. The system leverages AI-powered voice recognition to listen for commands from any location within the vehicle and intelligently determines the origin of the command. This advancement is designed to improve user experience and expand the practical applications of in-car AI assistants, potentially opening new business opportunities in smart vehicle technology, as reported by Sawyer Merritt.