Tesla Eliminates Rare Earths From Cybercab Motor-Is Mass-Scale Economics Proven?

Highlights

• Tesla's Cybercab motor reportedly eliminates neodymium and other rare-earth magnets, a claim Elon Musk calls 'extremely hard' to achieve without sacrificing range.
• Only ~45 Cybercabs were registered in Texas at launch, meaning mass-scale production validation of the rare-earth-free motor has not yet been demonstrated.
• Key engineering details—magnet chemistry, efficiency maps, thermal performance, and cost per kW versus NdFeB designs—remain publicly undisclosed.
• The development signals measurable substitution risk for China's NdFeB magnet dominance, even if it does not prove rare-earth magnets are obsolete.